🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
HomeStudy Guides420,000US230,000

BMS 360 Study Guide - Quiz Guide: Paramesonephric Duct, Cryptorchidism, Enzyme

69 views5 pages
lemondog142
22 May 2014
School
CSU
Department
Biomedical Science
Course
BMS 360
Professor
Douglas Ishii

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Xx and xy wolffian + mullerian ducts. Exp 3: remove gonads of xx + testis fragment. Require testosterone + amh to form wolffian ducts and degenerate mullerian duct. If the error is in meiosis i, all gametes have problems. If the error occurs in meiosis ii, half of gametes are normal. The extra x chromosome can come from either ovum or sperm. Xx infant extra testosterone can masculinize external genitalia. Distinguish the different components of the male reproductive tract and explain their function. Explain the functions of sertoli cells and testosterone. Understand spermatogenesis, and know the different germ cell types in the testes. Explain sperm transport through and exit from the reproductive tract. Requires optimal temperature (2 3 c lower) Blood going towards the testis cooled by neighboring veins. Most common birth defect on male genitalia in human infants. Failure of testes to descend into the scrotum.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers

Related Questions

Identify the organ that corresponds with each of the following functions-1) Organ that allows the male to pass urine and semen leave the from his body; organ that enters the female's body during sexual intercourse.-2) Passage way through which urine and semen leave the penis.-3) Glands that produce sperm and the male sex hormone (testosterone)-4) Muscular sac where urine is stored.-5) Pouch of skin that holds the testes and controls temperature for sperm production.-6) The head or end of the penis: filled with highly sensitive nerve endings; particularly sensitive to stimulation.-7) Passageway for the sperm- 8) Coiled tube system in which sperm mature. A) Scrotum B) Urethra C) Bladder C) Vas deferens D) penis E) Testis F) Epididymis G) Seminal vesicle H) Prostate gland I) Cowper's gland J) Glans penis

Suppose the (1) ____ oocyte is on its way down an oviduct when a female and male are engaged in sexual intercourse, or (2) _____. The male sex act requires (3) _____________ and ejaculation. During coitus, pelvic thrusts stimulate the penis, the female’s (4) ____________, and the vaginal wall. The mechanical stimulation induces involuntary contractions in the male reproductive tract. It forces sperm from the (5) _____ and contents of seminal vesicles and the (6) ________ gland into the urethra. The substances mix and form (7) _____, which is ejaculated into the vagina. During male (8) ________, the end of the sex act, strong sensations of physical release, warmth, and relaxation dominate. Similar sensations typify female orgasm. Following sexual intercourse, (9) _____ are in the vagina. Fertilization most often takes place in the upper portion of the (10) _____. When living sperm contact an oocyte, they release (11) ______ that clear a path through the zona pellucida. Usually only one sperm fuses with the secondary oocyte; only its nucleus and centrioles do not degenerate in the oocyte’s cytoplasm. Sperm penetration induces the secondary oocyte and the first polar body to finish meiosis (12) _______. There are now three polar bodies and a mature egg, or (13) ______. As the sperm and egg nuclei fuse, their chromosomes restore the (14) ____ number for a brand new zygote. A. Orgasm H. Epididymis B. II I. Semen C. Clitoris J. Sperm D. Enzymes K. Erection E. Diploid L. Prostate F. Oviduct M. Ovum G. Secondary N. Coitus

Signal transduction ispart of a cell's response to an external signal. Althoughsignaltransduction pathways can differ in their details, there aresome common elements. Determine which of the statements belowaccurately describe signal transduction pathways. Select the sixcorrect statements.


1. A receptor changes conformation uponbinding, transmitting a signal acrossthe cellmembrane.

2. Signal transductioncascades, often involvingprotein kinases, amplify a signal intracellularly.

3. Signal transductioncascades directly transmit asingle stimulus to a single target.

4. A second messengermay carry a signal from thecell membrane to an organelle.

5. A ligand, such as a hormone, binds to a specific cell surfacereceptor on a target cell.

6. A ligand phosphorylates protein residues, ending the signalingcascade inside thecell.

7. A receptor may pass on a signal by interacting withanother protein or by acting as an enzyme.

8. Phosphatases remove phosphoryl groupsfrom polypeptides, regulating a cell's response.

9. A second messengercarries a signal from atissue or organ to a target cell.