objective 8 pt 1

Question 1

what are the primary sex organs?

Answer 1

testes and ovaries

Question 2

produce gametes
secrete steroid sex hormones

Answer 2

primary sex organs

Question 3

what are the gametes that primary sex organs produce?

Answer 3

sperm and ova

Question 4

what are the hormones that primary sex organs produce?

Answer 4

androgens
estrogens and progesterone

Question 5

what are the accessory reproductive organs?

Answer 5

ducts, glands, and external genitalia

Question 6

sperm-producing male gonads that lie within the scrotum

Answer 6

testes

Question 7

delivered through the body through system of ducts

Answer 7

sperm

Question 8

what are the ducts that sperm is delievered through the body>

Answer 8

epididymis, ductus deferens, ejaculatory duct, urethra

Question 9

what are the accessory sex glands?

Answer 9

seminal glands, prostate, and bulbo-urethral glands

Question 10

sac of skin and superficial fascia
hangs outside abdominopelvic cavity
contains paired oval testes

Answer 10

scrotum

Question 11

smooth muscle; wrinkles scrotal skin; pulls scrotum close to body when cold; allows scrotum to hang lower when hot

Answer 11

dartos muscle

Question 12

bands of skeletal muscle that elevate testes

Answer 12

cremaster muscles

Question 13

what are the 2 tunics that the testis is surrounded by?

Answer 13

tunica vaginalis
tunica albuginea

Question 14

outer layer derived from peritoneoum

Answer 14

tunica vaginalis

Question 15

extends inward, fibrous capsule of the testis

Answer 15

tunica albuginea

Question 16

extend inward from tunica albuginea divide testis into 250 lobules, each containing one to 4 coiled seminiferous tubules

Answer 16

septa

Question 17

have thick, stratified epithelium surrounding fluid-containing lumen

Answer 17

seminiferous tubules

Question 18

contains spheroid spermatogenic cells embedded in support cells called sustentocytes

Answer 18

epithelium

Question 19

surround each seminiferous tubule
smooth-muscle like cells that may squeez sperm and testicular fluids out of testes

Answer 19

myoid cells

Question 20

is made up of the head, body and the tail
site of sperm storage until ejaculation

Answer 20

epididymis

Question 21

located in soft tissue surrounding seminiferous tubules
produce androgens, such as testosterone
secrete it into interstitial fluid

Answer 21

interstitial endocrine cells

Question 22

encloses nerve fibers, blood vessels, and lymphatics supply testes

Answer 22

spermatic cord

Question 23

arise from abdominal aorta

Answer 23

testicular arteries

Question 24

arise from pampiniform venous plexus surrounding each testicular artery

Answer 24

testicular veins

Question 25

what are the ducts that carry sperm from testes to exterior of body?

Answer 25

epididymis ductus deferens ejaculatory duct urethra

Question 26

contains efferent ductules and is located on superior aspect of testis located on posterolateral area of testis

Answer 26

head

Question 27

is ~6m in legnth; makes up most of the epididymis

Answer 27

duct of the epididymis

Question 28

absorb testicular fluid and pass nutrients to stored sperm

Answer 28

microvilli

Question 29

~45 cm long passes through inguinal canal to pelvic cavity extends from epididymis to ejaculatory duct

Answer 29

ductus deferens

Question 30

cutting and ligating ductus deferens

Answer 30

vasectomy

Question 31

expels both urine and semen extends from bladder to tip of penis

Answer 31

urethra

Question 32

what are the 3 regions of the urethra

Answer 32

prostatic urethra intermediate part of the urethra (membranous) spongy urethra

Question 33

surrounded by prostate

Answer 33

prostatic urethra

Question 34

in urogenital diaphragm

Answer 34

intermediate part of the urethra (membraneous)

Question 35

runs through penis; opens at external urethral orifice

Answer 35

spongy urethra

Question 36

male copulatory organ made up of spongy urethra and 3 cylindrical bodies of erectile tissue

Answer 36

penis

Question 37

scrotum and penis

Answer 37

external genitalia

Question 38

surgical removal of foreskin

Answer 38

circumcision

Question 38

what does the penis consist of?

Answer 38

root and shift/body prepuce/foreskin

Question 38

anchors penis to pubic arch

Answer 38

crura

Question 38

surrounds urethra and expands to form glans and bulb

Answer 38

corpus spongiosum

Question 39

paired (2) dorsal erectile bodies, proximal ends from the crura

Answer 39

corpora cavernosa

Question 40

erectile tissue fills with blood, causing penis to enlarge and become rigid

Answer 40

erection

Question 40

a pair of glands on posterior bladder surface contains smooth muscle that contracts during ejaculation produces viscous alkaline seminal fluid

Answer 40

seminal glands (vesicles)

Question 41

diamond-shaped region between pubic symphysis, coccyx, and ischial tuberosities suspends scrotum contains root of penis and anus

Answer 41

male perineum

Question 42

encircles urethra inferior to bladder size of peach put consist of smooth muscle that contracts during ejaculation secretes milky slightly acid fluid

Answer 42

prostate

Question 43

pea-sized glands inferior to prostate produce thick, clear mucus during sexual arousal lubricate glans penis neutralize traces of acidic urine in urethra

Answer 43

bulbo-urethral glands

Question 44

milky-white mixture of sperm and accessory gland secretions contains fructose from seminal glans and activating fluid from prostate, and mucus from buldo-urethral glands alkaline fluid neutralizes acidity of male urethra and female vagina and enhances motility

Answer 44

semen

Question 45

what are the characteristics of semen?

Answer 45

* Contain prostaglandins that decrease viscosity of mucus in cervix and stimulate reverse peristalsis in uterus * Contains the hormone relaxin and other enzymes that enhance sperm motility * Contains ATP for energy * Can suppress female immune response * Antibiotic chemicals destroy some bacteria * Clotting factors coagulate semen initially to prevent draining out, then liquefy it by fibrinolysin so sperm can finish journey

Question 46

enlargement and stiffening of penis

Answer 46

erection

Question 47

are normally constricted when not sexually aroused; penis is flaccid

Answer 47

arterioles

Question 48

causes CNA activation of parasympathetic neurons, which released NO

Answer 48

sexual excitement

Question 49

expulsion of semen from male duct system sympathetic spinal reflex

Answer 49

ejaculation

Question 50

how many chromosomes do most body cells have

Answer 50

26, 2 sets of s3

Question 51

one, maternal, one paternal

Answer 51

homologous chromosomes

Question 52

two sets of 23 pairs

Answer 52

diploid chromosomal number (2n)

Question 53

have only 23 chromosomes

Answer 53

haploid chromosomal number (n)