Session 20
Supplemental Instruction
Iowa State University / Leader: / Ivy
Course: / AnS 214
Instructor: / Keating
Date: / 3/20/11
TESTICULAR ANATOMY:
1) What is the male reproductive organ?
2) The sac of skin that contains the paired testes is called the ______.
3) How much lower is testicular temperature than that of the body core? Why?
4) Name the two muscles that serve to maintain testicular temperature and note their fiber type:
5) Blood exchange and cooling in the testes is accomplished via a ______flow of blood that transfers heat between the ______artery and the veins of the ______. Thus arterial blood is ______, while venous blood is ______.
6) Label the picture to the right with the corresponding parts of the testes.
7) List the order of the structures in which sperm is conveyed within the testes:
______à______à ______à ______à______
8) Starting with the efferent ductules (the first duct) name the order of the ducts traversed by sperm from their formation to their expulsion; also include their major function:
_efferent ductules_ :
______:
______:
______:
ACCESSORY GLANDS:
1) Fill in the table below with info relating to the male reproductive accessory glands:
Gland / Products / % of Semen Volume2) Define the primary function of each seminal component/property below:
Fructose: Antibiotics:
Relaxin: Stickiness:
Prostaglandins: Fibrinolysin:
Alkalinity:
PENILE ANATOMY:
1) The penis consists of a ______and a ______that ends in the ______. The area of loose skin normally removed during circumcision is the ______.
2) What is the function of the crura?
3) Name the sections of erectile tissue found in the penile shaft:
SPERMATOGENESIS:
1) Trace the process of spermatogenesis, beginning with the diploid spermatogonium:
2n (Spermatogonium) ______
______
______
______
______
______
______
2) List some major functions of the sertoli/sustenacular cells that support spermatogenesis:
3) List some major functions of the leydig/interstitial cells that support spermatogenesis: