Learning biology not just depends on mugging up various terminologies but also on distinct understanding of diagrams involved in the subject. Therefore, it is quite important that students understand and practice all important diagrams with proper labelling.
By learning the biology diagrams, students can easily visualise their topics and retain the concepts for a long time in their brain. With this article, students can revise all the important diagrams in a very less time and prepare well to score high in CBSE Class 10 Science Exam Neurons or the nerve cells form the basic components of the nervous system. A typical neuron possesses a cell body called as soma, hair like structures called as dendrites and an axon.
Dendrites are thin structures that arise from the cell body. These dendrites acquire information from synapses via neurotransmitters and convert them into electrical impulses. These impulses are further carried over to the cell body. A human brain is composed of three main parts- the forebrain, the midbrain and the hindbrain. These three parts have specific functions.
The pathway of a reflex action is called reflex arc. In a reflex arc the stimulus is received by the receptors sense organs and it passes through the sensory nerves to the spinal cord. Kidneys have a structural filtration unit called nephron where the blood is filtered. Each kidney contains a million of nephrons. Capillaries of kidneys filter the blood and the essential substances like glucose, amino acids, salts, and required amount of water are reabsorbed.
Meanwhile, the pure blood circulates back to other parts. Excess water and nitrogenous waste in humans are converted to urine. Urine thus formed will be passed to urinary bladder via ureter. Through the urinary opening at urethra, we excrete urine. The human heart is mainly divided into four parts: two upper parts are called atria, and the lower ones are called ventricles. The ventricles are the chambers that pump blood and atrium are the chambers that receive blood. The right and the left regions of the heart are separated by the wall of muscle called septum.
As the right atrium contracts, the corresponding right ventricle expands and blood through tricuspid valve gets collected. It then pumps it to the lungs for oxygenation by pulmonary arteries which arise from the right ventricle. The right semilunar valves close and prevent the blood from the pulmonary veins after blood passes through the pulmonary arteries.
Then the oxygenated blood is received by the left atrium from the lungs via pulmonary veins. From left atrium the blood is transferred to left ventricle through bicuspid valve.The male reproductive system includes the penis, scrotum, testes, epididymis, vas deferens, prostate, and seminal vesicles. The penis and the urethra are part of the urinary and reproductive systems.
The scrotum, testes testiclesepididymis, vas deferens, seminal vesicles, and prostate comprise the rest of the reproductive system. The penis consists of the root which is attached to the lower abdominal structures and pelvic bonesthe visible part of the shaft, and the glans penis the cone-shaped end. The opening of the urethra the channel that transports semen and urine is located at the tip of the glans penis.
The base of the glans penis is called the corona. In uncircumcised males, the foreskin prepuce extends from the corona to cover the glans penis. The penis includes three cylindrical spaces blood-filled sinuses of erectile tissue. The two larger ones, the corpora cavernosa, lie side by side.
The third sinus, the corpus spongiosum, surrounds most of the urethra. When these spaces fill with blood, the penis becomes large and rigid erect. The scrotum is the thick-skinned sac that surrounds and protects the testes. The scrotum also acts as a climate-control system for the testes because they need to be slightly cooler than body temperature for normal sperm development.
The cremaster muscles in the wall of the scrotum relax to allow the testes to hang farther from the body to cool or contract to pull the testes closer to the body for warmth or protection.
The testes are oval bodies that average about 1. Usually the left testis hangs slightly lower than the right one. The testes have two primary functions:. Producing testosterone the primary male sex hormone. The epididymis consists of a single coiled microscopic tube that measures almost 20 feet 6 meters in length. The epididymis collects sperm from the testis and provides the environment for sperm to mature and acquire the ability to move through the female reproductive system and fertilize an ovum.
One epididymis lies against each testis. The vas deferens is a firm tube the size of a strand of spaghetti that transports sperm from the epididymis. One such duct travels from each epididymis to the back of the prostate and joins with one of the two seminal vesicles.
In the scrotum, other structures, such as muscle fibers, blood vessels, and nerves, also travel along with each vas deferens and together form an intertwined structure, the spermatic cord. The urethra serves a dual function in males. This channel is the part of the urinary tract that transports urine from the bladder and the part of the reproductive system through which semen is ejaculated.
The prostate lies just under the bladder and surrounds the urethra. Walnut-sized in young men, the prostate enlarges with age. When the prostate enlarges too much, it can block urine flow through the urethra and cause bothersome urinary symptoms.
The seminal vesicles, located above the prostate, join with the vas deferens to form the ejaculatory ducts, which travel through the prostate. The prostate and the seminal vesicles produce fluid that nourishes the sperm.You are having covered the topic on the reproductive systems for both males and females, you are expected to know the purpose of each and identify the different parts.
The quiz below is designed to test how well you know the male reproductive system. Give it a try and share your score. Search Speak now. The Male Reproductive System Quiz! Questions All questions 5 questions 6 questions 7 questions 8 questions 9 questions 10 questions. Feedback During the Quiz End of Quiz. Play as Quiz Flashcard. More Male Reproductive System Quizzes.
Featured Quizzes. The Office Trivia Quiz! Fun Quiz: The Impossible Test! Related Topics. Questions and Answers. Remove Excerpt. Removing question excerpt is a premium feature. These are responsible for carrying sperm-filled semen from the male to the female's vagina.
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A chemical or hormone produced by the testes that cause bodily changes during male puberty. A set of coiled tubes that connect to the vas deferens. The tiny male cell that unites with the female ovum to form a fertilized egg or zygote. Back to top.IF there was not a male reproductive system then there would be no offspring.
All male reproductive systems are essentialy the same. The endocrine system controls development of the male reproductive system by the use of hormones. Testosterone is the hormone that regulates the male reproductive structure.How To Draw Male Reproductive System - step by step for beginners
Most of the male reproductive system consists of external organs, while most of the female reproductive system consists of internal organs. Person who studies the male reproductive system.
It is the study of the health of a male especially the reproductive system. The male reproductive system is a system of its own, complemented by the nerves system, the endocrine system, the muscular system, and the integumentary system.
The Spermatic Cord is a supporting structure in the male reproductive system. Asked By Curt Eichmann. Asked By Leland Grant. Asked By Veronica Wilkinson. Asked By Daija Kreiger. Asked By Danika Abbott. Asked By Consuelo Hauck.
Male Reproductive system
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Why is the function of the male reproductive system important? What does the male reproductive system have in common with the cat male reproductive system? What is the function of reproductive system? What Reproductive system main organs? What is the male reproductive system specialized to produce? What are the parts of male reproductive system? How does the endocrine system control development of the male reproductive system?Hi, Today we bring you various dashing pictures that we've gathered special for you, this time we will see more about Pearson Square Worksheet and Answer Key.
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That's why we always keep the original pictures without any editing including the copyright mark. Every pictures gallery we include are always carrying website or blog link where we found it below each photos. Common thing is people ask about the proper right about the photos on our gallery. In case you want to ensure what is your right, you need to contact the website on each photos, the reason is we cannot decide your true right.
We notice you, no watermark does not mean the images can be freely used without permission. Gallery Type. Useful Worksheet Designing Tips: Using different fonts in the same words and see how they are different tones. Use strong, geometric typeface to reinforce your message. Typography has personality as well. Make sure you represent your message with the right fonts. Have something to tell us about the gallery?The organs that comprise the male genital system are the testicles, the epididymis, the vas deferens, the seminal vesicles, the ejaculatory duct, the prostate, the bulbourethral glands, the urethra and the penis.
The testicles are the male gonads; that is, the organs where the production of gametes takes place. In human beings, gametes are produced by meiosis that occurs in the testicles. After leaving the epididymis in the testicle, sperm cells enter the vas deferens.
After that, they receive secretions from seminal vesicles and gather from the right and left sides in the ejaculatory duct. They also get secretions from the prostate and the bulbourethral glands and then go through the urethra, inside the penis, to the exterior. These secretions, along with sperm cells from the testicles, form semen. These secretions have the function of nourishing the sperm cells and serving as a fluid means of propagation for them.
The alkaline pH of seminal fluid also neutralizes the acidic secretions of the vagina, allowing the survival of sperm cells in the vaginal environment after copulation. In males, sexual activity is regulated by the endocrine glands: the hypophysis the pituitarythe adrenal glands and the gonads testicles.
FSH follicle-stimulating hormone secreted by the adenohypophysis acts on the testicles, stimulating spermatogenesis. LH luteinizing hormoneanother adenohypophyseal hormone, also stimulates the production of testosterone by the testicles. Testosterone, the production of which intensifies after the beginning of puberty, acts on several organs of the body and is responsible for the appearance of secondary male sex characteristics beard, body hair, deep voice, increase in the muscle and bone mass, maturation of genitalia, etc.
Testosterone also stimulates spermatogenesis. The organs that make up the female reproductive system are the ovaries, the Fallopian tubes or uterine tubesthe uterus, the vagina and the vulva.
The meiosis that forms female gametes begins in the cells of ovarian follicles before birth. After the beginning of puberty, under hormonal stimuli, during each menstrual cycle, one of the cells is released on the surface of the ovary and meiosis resumes.
However, the meiotic process is only concluded if fertilization occurs. The organ that releases the female gamete is the ovary, the female gonad. The releasing of the oocyte is a response to hormonal stimuli. The immature egg cell still an oocyte falls into the abdominal cavity and is picked up by the Fallopian tube uterine tube, or oviducta tubular structure that connects the ovary with the uterus.
The external female genitalia is called the vulva. The vulva is the external opening of the vaginal canal, or vagina. The vagina is the copulation organ of females and its posterior extremity communicates with the uterus through the uterine cervix. The uterus is divided into two portions: the cervix and the uterine cavity.
The lateral walls of the uterine fundus communicate with the Fallopian tubes. The other extremity of each Fallopian tube ends in fimbria, forming fringes in the abdominal cavity.
Between the uterine tube and the ovary is intra-abdominal space. Select any question to share it on FB or Twitter. Just select or double-click a question to share. Challenge your Facebook and Twitter friends. The menstrual cycle is the periodic succession of interactions between the hormones and organs of the female reproductive system that, after the beginning of puberty, regulates the release of female gametes and prepares the uterus for fertilization and pregnancy.The male reproductive system consists of a number of sex organs that play a role in the process of human reproduction.
These organs are located on the outside of the body and within the pelvis. The main male sex organs are the penis and the testicles which produce semen and spermwhich, as part of sexual intercoursefertilize an ovum in the female's body; the fertilized ovum zygote develops into a fetuswhich is later born as an infant. The corresponding system in females is the female reproductive system. The penis is the male intromittent organ. It has a long shaft and an enlarged bulbous-shaped tip called the glans peniswhich supports and is protected by the foreskin.
When the male becomes sexually arousedthe penis becomes erect and ready for sexual activity. Erection occurs because sinuses within the erectile tissue of the penis become filled with blood. The arteries of the penis are dilated while the veins are compressed so that blood flows into the erectile cartilage under pressure.
The penis is supplied by the pudendal artery. The scrotum is a pouch-like structure that hangs behind the penis.
It holds and protects the testicles.
It also contains numerous nerves and blood vessels. During times of lower temperatures, the Cremaster muscle contracts and pulls the scrotum closer to the body, while the Dartos muscle gives it a wrinkled appearance; when the temperature increases, the Cremaster and Dartos muscles relax to bring down the scrotum away from the body and remove the wrinkles respectively.
The scrotum remains connected with the abdomen or pelvic cavity by the inguinal canal. The spermatic cord, formed from spermatic artery, vein and nerve bound together with connective tissue passes into the testis through inguinal canal. Testis has two major functions: To produce sperm by meiotic division of germ cells within the seminiferous tubules,  and to synthesize and secrete androgens that regulate the male reproductive functions.
The site of production of androgens is the Leydig cells that are located in the interstitium between seminoferous tubules. The epididymis is a long whitish mass of tightly coiled tube. The sperm that are produced in the seminiferous tubules flow into the epididymis.
During passage via the epididymis, the sperm undergo maturation and are concentrated by the action of ion channels located on the apical membrane of the epididymis. The vas deferens, which is also known as the sperm duct, is a thin tube approximately 30 centimetres 0. It carries the spermatozoa from the epididymis to ejaculatory duct.
Three accessory glands provide fluids that lubricate the duct system and nourish the sperm cells. They are the seminal vesiclesthe prostate glandand the bulbourethral glands Cowper glands.
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The embryonic and prenatal development of the male reproductive system is the process whereby the reproductive organs grow, mature and are established. It begins with a single fertilized egg and culminates 38 weeks later with birth of a male child.
It is a part of the stages of sexual differentiation.