Section -1

L T G

17

A & P Genitourinary System

OBJECTIVES:

1.17.01 List and identify the basic structures of the male reproductive system and their functions.

1.17.02 List and identify the basic structures of the female reproductive system and their functions.

1.17.03 State the steps in the menstrual cycle.

OBJECTIVES (cont.)

1.17.04 List and identify the structures of the urinary system and their functions.

1.17.05 List the basic steps in the formation of urine.

1.17.06 List the basic characteristics of urine.

Identify the basic structures of the male reproductive system and explain their functions.

1.17.01

A. Penis - Is composed of three cylindrical rods of erectile tissue that surrounds the urethra.

B. Urethra - A tube that transports semen and urine outside of the body.

C. Scrotom - A skin covered pouch that is internally divided into two sacs.

E. Epididymis - Elongated, cord like structure that provides storage and transportation of sperm.

F. Vas deferens -

a small tube that connects the epididymis and ejaculatory duct.

G. Ejaculatory duct -

Formed union of the vas deferens with ducts of seminal vesicles

H. Seminal vesicles - secretes a viscous, alkaline fluid at the time of ejaculation.

I. Prostate gland -

Chestnut shaped gland encircling urethra just inferior to the bladder

List and identify the basic List and identify the basic structuresstructures

of the female reproductiveof the female reproductivesystem and their system and their

functionsfunctions

1.17.02

A. Ovaries (female gonads)B. Fallopian tubes - Serves as ducts from ovaries in which ova are transported to the uterus.

C. Uterus - is a pear shaped structure in the pelvic cavity consisting of a body and a cervix.

D. Vagina - Musculomembranous, collapsible tube, capable of great distension.

G. Perinium -

Muscular region between the vaginal orifice and the anus.

I. Adrenal glands -

Located on the superior surface of the kidney and produces sex hormones.

State the steps in the menstrual cycle.

1.17.03

The endometrium of the uterus sloughs off.

Menses

Preovulatory Phase

The time between the last days of menses and the release of a mature egg.

Ovulation

The release of a mature ovum into the fallopian

tube.

Postovulatory

The time between ovulation and onset of

menses.

List and identify the basic List and identify the basic structures structures

of the urinary system andof the urinary system and their functionstheir functions

1.17.04

The primary function of the urinary system is to help maintain homeostasis by

controlling the composition, volume and pressure of the

blood

The primary function of the urinary system is to help maintain homeostasis by

controlling the composition, volume and pressure of the

blood

List the basic stepsList the basic stepsin the formation of in the formation of

urineurine

1.17.05

Urine is the excreted fluid that results from the kidneys filtration of blood which is a two part process....

Filtration:

Arterial pressure forces plasma through the nephron where water, salts, glucose, and other dissolved blood components are filtered out of the blood.

Selective reabsorptionGlucose and essential

proteins

List the basic characteristics of urine

1.17.06

* 1 to 2 liters every 24 hours* Yellow or amber* Slightly acidic* Aromatic * Approx 95% water and 5% waste products