ANSC 333 Exam 1 Questions With Complete Solutions

ANSC 333 Exam 1 Questions With Complete Solutions Temperature of testicles compared to the body - Correct Answer 4-6 degrees C COOLER Temperature of blood from heart - Correct Answer 39 degrees C Pampiniform plexus - Correct Answer Network of veins wrapped intimately with testicular artery within the scrotum; absorbs heat from the arterial blood entering the testes; derived from the testicular vein; increases surface area in order to exchange heat Functions of the testicles - Correct Answer 1. produce sperm 2. secrete sex hormones 3. deliver sperm Arteries go ____ from the heart - Correct Answer away Veins go ______ the heart - Correct Answer towards ductus deferens (vas deferens) - Correct Answer tube that carries sperm from epididymis to urethra; lays right on the pampiniform plexus fasia - Correct Answer connective tissue that holds things together cremaster muscle - Correct Answer striated muscle; elevates or suspends testes in short term situations (ejaculations, flight/flight) tunica dartos muscle - Correct Answer smooth muscle; pushes the testes upward toward the body for warmth or relaxes to cool the testes in long term situations vaginal cavity - Correct Answer the space that separates the visceral vaginal tunic from the parietal vaginal tunic of the descended testicle; two membranes are pulled down with testicles through the body to scrotum; allows for ease of movement 4 ways to achieve thermoregulation of testicles - Correct Answer 1. dartos muscle 2. pampiniform plexus 3. sweat glands in scrotal skin 4. breathing harder which thermoregulation method is indirect - Correct Answer breathing harder