1. Describe the path of sperm from the seminiferous tubules to the urethral opening. 2 Describe...

1. Describe the path of sperm from the seminiferous tubules to the urethral opening.

2 Describe the Function

Tail (flagellum)

Midpiece

Head

Acrosome

3 . Describe the functions of testosterone

Expert Solution

Answer

1) Pathway of sperm

Seminiferous tubules
Rete testis
Epididymis
Vas deferens
Ampulla of vas deferens
Ejaculatory duct
Prostatic urethra
Membranous urethra
Spongy urethra
Urethral opening

2) Functions :

1. Tail (flagellum)
- Tail provides motility to the sperm. The whipping movement of tail facilitate movement of sperm in femal reproductive tract.

2. Midpiece
- Midpiece of the sperm contains mitochondria. Mitochondria functions to produce ATP and provide energy to the sperm.

3. Head
- Head of sperm contains nucleus. Nucleus of sperm fuses with nucleus of female gamate to produce a zygote.

4. Acrosome
- Acrosome synthesize enzymes such as hyaluronidase and acrosin that digest outer membrane of oocyte and allows the sperm to penetrate.

3) Functions of testosterone

Testosterone hormoe is produced by interstitial cells in testis as well as zona reticulosa layer of adrenal cortex.
Testosterone faciliate sperm production along with folliscle stimulating hormone.
Testosterone helps in development of male secondary sexual characteristics such as muscle building, pubic hair, axillary hair, facial hair, pitch of male voice.
It also boost sexual drive in male.
It is very important to maintain bone mass density.

Sydney Mullin answered 1 year ago

Trace the pathway of sperm from the seminiferous tubules until sperm leaves the body. Be sure...

Trace the pathway of sperm from the seminiferous tubules until sperm leaves the body. Be sure to include the 3 regions of the male urethra. Trace the pathway of sperm entering the female reproductive system and name all structures it would pass to enter the pelvic cavity or the egg upon fertilization. Include all parts of the uterine tube. Trace the pathway of urine formation from the nephron/collecting duct until urine leaves the body through the urethra. Be sure to...

1.) Trace the path of sperm development and its passage from the testis through the epididymis,...

1.) Trace the path of sperm development and its passage from the testis through the epididymis, vas deferens, and out the urethra. Be sure to name all the accessory gland and contributions to the formation of semen as you do so. 2.) Answer the following questions: a) Why do you suppose males produce so many millions of sperm with each ejaculation? b) Note that the vas deferens (also called ductus deferens) is a tube nearly 30 cm (12 inches) in...

following the path of an ejaculated sperm from the vagina to the oocyte list all the...

following the path of an ejaculated sperm from the vagina to the oocyte list all the structures of the female relroductive tract that the sperm must swim through to reach the egg.

1. What is the path that the sperm cells and secondary oocytes travel to get to...

1. What is the path that the sperm cells and secondary oocytes travel to get to each other? 2. How the secondary oocyte gets into the oviduct and meets up with the sperm cell?

1. trace the path of ingested food from the oral cavity to the anus 2. describe...

1. trace the path of ingested food from the oral cavity to the anus 2. describe the digestion ( mechanical and chemical) processes and locations in the alimentary canal 3. discuss the anatomical adapations that increase the main function of the small intestine.

1. Describe the events associated with the ovarian cycle. 2. Describe the patch of sperm formation...

1. Describe the events associated with the ovarian cycle. 2. Describe the patch of sperm formation to the exit from the penile urethra 3. Discuss the phrases of meiosis as related to the formation of male and female gamettes.

Describe ejaculation from the point of view of the sperm

Question 17 Sperm maturation occurs in tightly coiled tubules called the ________. a. epididymus b. vas...

Question 17 Sperm maturation occurs in tightly coiled tubules called the ________. a. epididymus b. vas deferens c. testes d. placenta Question 22 During embryonic development, a human develops three germ layers: the ectoderm, endoderm and mesoderm. a. TRUE b. FALSE Question 25 Queen bees produce haploid male drones through a process called ________. a. asexual reproduction b. parthenogenesis c. regeneration d. haploidy Question 26 Growth factors may be given to AIDS patients in order to ________. a. increase production...

1. Describe the path followed by water from the soil, through the plant and into the...

1. Describe the path followed by water from the soil, through the plant and into the atmosphere. Where in the path are the important resistances to water movement? 2. What is meant by the term "active transport"? What is the difference between "primary" and "secondary" active transport? 3. Both membrane channels and carriers show changes in protein conformation. What is the role of such conformation changes (a) in channels, and (b) in carriers?

1. Describe the path of urinary filtrate from where it leaves the glomerulus to the ureter....

1. Describe the path of urinary filtrate from where it leaves the glomerulus to the ureter. Specifically, what happens to water, sodium and urea during this trip? How is the reabsorption of water and sodium regulated by hormones? 2. Discuss the difference between the sympathetic and parasympathetic nervous systems. Be sure to include a discussion of the different ganglia found in each system and their roles.

Question