Pelvic Bones and Cavity lecture iv and Reproduction lecture i

Question 1

ischio-anal (ischiorectal) fossa: large, fascia-lined, wedge-shaped space btwn

Answer 1

the skin of the anal region and the pelvic diaphragm

Question 2

ischio-anal (ischiorectal) fossa: filled w/

Answer 2

fat and loose connective tissue

Question 3

pudendal canal

Answer 3

passageway in the lateral wall of the ischio-anal fossa for nerves and blood vessels passing to and from the perineum

Question 4

perineum- diamond shaped area inferior to

Answer 4

the pelvic diaphragm

Question 5

perineum in females with lower limbs abducted, it extends from the

Answer 5

mons pubis anteriorly and the insides of the thighs laterally to the gluteal folds and superior end of the intergluteal cleft posteriorly

Question 6

the perineum is divided into 2 traingles:

Answer 6

1. urogenital triangle/diaphragm

2. anal triangle

Question 7

urogenital triangle/diaphragm the _ triangle

Answer 7

anterior triangle

Question 8

urogenital triangle/diaphragm pierced by the _ in both genders and the _ in females

Answer 8

by the urethra in both genders and the vagina in females

Question 9

the _ are surface feats of the urogenital triangle/diaphragm

Answer 9

the labia majora, labia minora, and clitoris in females and the penis and scrotum in males are surface feats of the urogenital triangle/diaphragm

Question 10

the anal triangle the _ triangle

Answer 10

posterior triangle

Question 11

the _ is a surface feat of the anal traingle

Answer 11

the anus

Question 12

perineal body irregular mass containing

Answer 12

(central tendon of the perineum) irregular mass containing muscle and collagenous and elastic fibers

Question 13

perineal body lies deep to the _ and is the site of _

Answer 13

skin and is the site of convergence of fibers of several muscles

Question 14

muscles that converge in the perineal body (3)

Answer 14

1. bulbospongiosus
2. superficial transverse perineal muscle
3. deep transverse perineal muscle

Question 15

bulbospongiosus action in males

Answer 15

assists erection by compressing outflow vein of penis and compresses bulb of penis to expel the last drops of urine or semen

Question 16

bulbospongiosus action in females

Answer 16

assists erection of clitoris and compresses greater vestibular gland

Question 17

bulbospongiosus innervation

Answer 17

perineal nerve (a branch of the pudendal nerve)

Question 18

superficial and deep transverse perineal action

Answer 18

support perineal body and pelvic floor to support the abdominopelvic viscera

Question 19

superficial and deep transverse perineal innervation

Answer 19

perineal nerve (a branch of the pudendal nerve)

Question 20

external urethral sphincter action

Answer 20

compresses urethra to maintain urinary continence

Question 21

external urethral sphincter innervation

Answer 21

dorsal nerve of penis or clitoris (a branch of the pudendal nerve)

Question 22

penis consists of

Answer 22

root, body, glans

Question 23

root of penis the attached part; includes two _ and a _, which consist of _ tissue

Answer 23

the attached part; includes two cura and a bulb, which consist of erectile tissue

Question 24

body of penis the free _ part that is suspended from _

Answer 24

the free pendulous part that is suspended from the pubic symphysis

Question 25

glans of penis the margin is the _ of the glans; the _ is near its tip

Answer 25

its margin is the corona of the glans; the external urethral orifice is near its tip

Question 26

t/f: internally, the penis contains 3 cylindrical cavernous bodies of erectile tissue

Answer 26

true

Question 27

corpora cavernosa (dorsal/ventral?); (paired/unpaired?); they are extensions of the _

Answer 27

dorsal; paired; they are extensions of the crura

Question 28

corpus spongiosum (ventral/dorsal?); (paired/unpaired?); its distal expansion is the _; the _ runs through it

Answer 28

ventral; unpaired; its distal expansion is the glans penis; the spongy urethra runs through it

Question 29

prepuce an extension of the _ and _ of the penis around the _

Answer 29

(foreskin) an extension of the skin and fascia of the penis around the glans

Question 30

the prepuce contains a median fold called

Answer 30

the frenulum of the prepuce

Question 31

penile raphe

Answer 31

raised ridge btwn glans penis and scrotum

Question 32

scrotal raphe

Answer 32

ridge btwn penile raphe and perineal raphe

Question 33

perineal raphe

Answer 33

ridge btwn scrotal raphe and anus

Question 34

urethra muscular tube that conveys urine from the _ to the _

Answer 34

from the internal urethral orifice of the urinary bladder to the external urethral orifice;

Question 35

urethra also provides exit for _ (not urine)

Answer 35

semen

Question 36

urethra divided into 4 segments:

Answer 36

1. intramural (preprostatic) urethra 2. prostatic urethra 3. intermediate (membranous) urethra 4. spongy (penile) urethra

Question 37

intramural (preprostatic) urethra first segment that exits the _

Answer 37

first segment that exits the bladder

Question 38

prostatic urethra next segment after intramural urethra that travels through _; _ ducts open into it

Answer 38

next segment that travels through the prostate; the ejaculatroy ducts open into it

Question 39

intermediate (membranous) urethra begins at the inferior end of the _ and ends where the urethra enters the _ of penis

Answer 39

begins at the inferior end of the prostate and ends where the urethra enters the bulb of penis

Question 40

spongy (penile) urethra final segment that ends at the _; ducts from the _ glands empty into it

Answer 40

final segment that ends at the external urethral orifice; ducts from the bulbo-urethral glands empty into it

Question 41

scrotum contains

Answer 41

testes and associated structures

Question 42

septum of the scrotum- deep to the _; a _ wall dividing the scrotum into 2 compartments

Answer 42

deep to the scrotal raphe; a fascial wall dividing the scrotum into 2 compartments