Lecture Exam 4

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Question #1

Which of the following is not a function of the nurse cells?

A They protect and support the germ cells.

B They secrete androgen-binding protein.

C They secrete testosterone.

D They secrete inhibin.

E Their tight junctions form the blood-testis barrier.

Question #2

Sexual reproduction entails the union of two gonads to form a zygote

A TRUE

B FALSE

Question #3

The ________ muscle is located in the urinary bladder.

A corpus cavernosum

B pubococcygeus

C corpus spongiosum

D distractor

E detrusor

Question #4

Where are follicles located?

A Medulla of the ovary

B Cortex of the ovary

C Epithelium of the endometrium

D Epithelium of the placenta

E Center of the ovum

Question #5

Aldosterone acts on the ________.

A medullary portion of the collecting duct

B descending limb of the nephron loop

C proximal convoluted tubule

D glomerulus

E distal convoluted tubule

Question #6

Oxytocin stimulates contraction of myoepithelial cell of the mammary acini.

A FALSE

B TRUE

Question #7

Men have only one ________.

A corpus cavernosum

B bulbourethral gland

C ejaculatory duct

D seminal vesicle

E prostate

Question #8

Hypocalcemia stimulates ________.

A secretion of renin

B secretion of parathyroid hormone

C an increase in blood urea nitrogen

D a decrease in aldosterone production

E vasoconstriction of the afferent arterioles

Question #9

The penis is homologous to the ________.

A mons pubis

B labia minora

C urethra

D vagina

E clitoris

Question #10

The acrosome contains enzymes used to ________.

A penetrate the vagina

B dissolve the mucosa of the uterus

C dissolve the mucosa of the vagina

D dissolve the stickiness of the semen

E penetrate barriers surrounding the ovum

Question #11

The innermost connective tissue layer protecting the kidney and assisting in staving off infection is known as the ________.

A fibrous capsule

B renal fascia

C perirenal fat capsule

D hilum

E renal medulla

Question #12

The countercurrent heat exchanger that prevents arterial blood from overheating the testes is the ________.

A pampiniform plexus of veins

B epididymis

C blood-testis barrier

D scrotal portal system

E rete testis

Question #13

Males produce sperm and females produce eggs.

A FALSE

B TRUE

Question #14

Which of the following is the correct pathway of sperm cells from their formation to ejaculation?

A Seminiferous tubule, epididymis, rete testis, urethra, ejaculatory duct, ductus deferens

B Seminiferous tubule, epididymis, rete testis, ductus deferens, ejaculatory duct, urethra

C Seminiferous tubule, rete testis, epididymis, ejaculatory duct, urethra, ductus deferens

D Seminiferous tubule, epididymis, rete testis, ejaculatory duct, ductus deferens, urethra

E Seminiferous tubule, rete testis, epididymis, ductus deferens, ejaculatory duct, urethra

Question #15

________ stimulates the interstitial cells of the testes to secrete ________.

A Luteinizing hormone (LH); androgen-binding protein (ABP)

B Follicle-stimulating hormone (FSH); androgen-binding protein (ABP)

C Gonadotropin-releasing hormone (GnRH); LH

D Luteinizing hormone (LH); estrogen

E Luteinizing hormone (LH); testosterone

Question #16

Which of the following is a direct result of antidiuretic hormone?

A Increased urine acidity

B Increased urine volume

C Decreased urine volume

D Decreased urine molarity

E Increased urine salinity

Question #17

The transition from an afferent arteriole to an efferent arteriole occurs in the ________.

A cortical radiate veins

B vasa recta

C peritubular capillaries

D glomerulus

E medulla

Question #18

At early puberty, follicle stimulating hormone (FSH) and luteinizing hormone (LH) stimulate enlargement of the testes.

A FALSE

B TRUE

Question #19

Blood plasma is filtered in the ________.

A renal tubule

B renal calyx

C renal column

D renal corpuscle

E renal capsule

Question #20

Which of the following is not true about the anatomy of the urinary system?

A The kidneys are at equal heights within the pelvic cavity.

B The kidneys are retroperitoneal.

C The urethra of males is longer than the urethra of females.

D The right kidney is located more inferiorly than the left kidney.

E The ureters connect the kidneys to the urinary bladder.

Question #21

Which of the following would reduce the glomerular filtration rate?

A An increase in osmotic pressure in the glomerular capsule

B A drop in oncotic pressure

C Vasodilation of the afferent arteriole

D Vasoconstriction of the efferent arteriole

E Vasoconstriction of the afferent arteriole

Question #22

The ________ is the small, bilateral organ found lateral to the membranous urethra.

A seminal vesicle

B bulbourethral gland

C prostate

D urethra

E ejaculatory duct

Question #23

Which of the following is generally accepted as a secondary sex characteristic?

A The presence of testes

B The enlargement of the breasts

C The vagina

D The uterus

E The prostate

Question #24

In meiosis, each parent cell produces ________.

A haploid (n) cells that are identical to the parent cell

B two diploid (2n) cells

C two haploid (n) cells

D four diploid (2n) cells

E four haploid (n) cells

Question #25

Why would an enlarged prostate interfere with urination?

A It develops calcified deposits that block the urethra.

B It compresses the urethra.

C It inhibits urine production.

D It produces thicker prostatic secretions that block the urethra.

E It inhibits the micturition reflex.

Question #26

What hormone(s) inhibit(s) the secretion of FSH and LH during the female sexual cycle?

A Androgens

B Progesterone

C GnRH

D Estradiol and progesterone

E Estradiol

Question #27

When it is cold, the ________ contracts and draws the testes closer to the body to keep them warm.

A cremaster

B corpus spongiosum

C corpus cavernosum

D perineum

E pampiniform plexus

Question #28

In which structure does fertilization usually occur?

A Uterus

B Uterine tube

C Urinary bladder

D Ovary

E Urethra

Question #29

Because of the great deal of active transport that occurs here, the ________ of one’s nephrons collectively account for about 6% of one’s daily resting ATP and caloric consumption.

A proximal convoluted tubules

B collecting ducts

C loops of Henle

D glomeruli

E distal convoluted tubules

Question #30

After puberty, which epithelium lines the vagina?

A Simple columnar epithelium

B Simple squamous epithelium

C Stratified squamous epithelium

D Simple cuboidal epithelium

E Transitional epithelium

Question #31

The ________ innervation of the kidneys reduces urine production, while the function of its ________ innervation is unknown.

A parasympathetic; sympathetic

B enteric; somatic

C peripheral; central

D central; peripheral

E sympathetic; parasympathetic

Question #32

Which of the following is inhibited by testosterone?

A Development of secondary sex organs

B Gonadotropin-releasing hormone (GnRH) secretion

C Sperm production

D Development of secondary sex characteristics

E Libido

Question #33

In ovulation, after expelling the oocyte the follicle becomes a ________ and secretes ________.

A corpus luteum; FSH and LH

B corpus albicans; estrogen and progesterone

C corpus albicans; FSH and LH

D corpus albicans; progesterone

E corpus luteum; estrogen and progesterone

Question #34

The ________ is not an organ of the urinary system.

A urinary bladder

B urethra

C ureter

D liver

E kidney

Question #35

Which of the following is true regarding the blood-testis barrier?

A It maintains testis temperature at 35°C.

B It prevents heat loss from the testes.

C It prevents antibodies in the blood from getting to the germ cells.

D It prevents blood from getting to the testes.

E It maintains testis temperature at 37°C.

Question #36

The ________ is the site of sperm maturation and storage.

A ductus (vas) deferens

B epididymis

C seminiferous tubules

D spermatic cord

E rete testis

Question #37

Assuming all other values are normal, calculate the net filtration pressure in a patient with a drop in capsular hydrostatic pressure to 8 mmHg.

A 50 mm Hg out

B 10 mm Hg out

C 40 mm Hg out

D 20 mm Hg out

E 30 mm Hg out

Question #38

In life threatening starvation, the kidneys synthesize glucose by ________.

A contributing to calcium homeostasis

B deaminating amino acids

C secreting renin

D secreting erythropoietin

E producing uric acid

Question #39

Which of the following is not a function of the kidneys?

A They indirectly increase oxyhemoglobin.

B They fight osteoporosis by synthesizing vitamin D.

C They regulate osmolarity of the body fluids.

D They release waste into the bloodstream.

E They help control blood pressure.

Question #40

The deep region of the penis, surrounding the urethra, that engorges with blood during an erection is known as the ________.

A epididymis

B ductus (vas) deferens

C corpus spongiosum

D corpus cavernosum

E scrotum

Question #41

Which of the following correctly traces blood flow from the renal artery into the renal cortex?

A Arcuate a. → interlobar a. → afferent arteriole → interlobular a.

B Afferent arteriole → interlobular a. → arcuate a. → interlobar a.

C Segmental a. → arcuate a. → interlobar a. → interlobular a.

D Segmental a. → interlobar a. →arcuate a. → interlobular a.

E Interlobar a. → interlobular a. → segmental a. → arcuate a.

Question #42

A single lobe of a kidney is comprised of ________.

A a renal medulla and two renal columns

B two calyces and a renal pelvis

C one pyramid and the overlying cortex

D one collecting duct and all nephrons that drain into it

E one major calyx and all of its minor calyces

Question #43

Which uterine layer is composed of a simple columnar epithelium containing tubular glands?

A Perimetrium

B Endometrium

C Fimbrium

D Cervix

E Myometrium

Question #44

Renin hydrolyzes angiotensinogen, which is released from the ________, to form angiotensin I.

A lungs

B spleen

C heart

D kidneys

E liver

Question #45

When does oogenesis begin?

A During thelarche

B During menarche

C At birth

D During pubarche

E During embryonic development

Question #46

Sperm travels to the ampulla of the ductus deferens before reaching the spermatic cord.

A TRUE

B FALSE

Question #47

The mechanism of stabilizing the GFR based on the tendency of smooth muscle to contract when stretched is known as ________.

A the myogenic mechanism

B renal autoregulation

C the renin-angiotensin-aldosterone mechanism

D tubuloglomerular feedback

E sympathetic control

Question #48

What do lutein cells develop from?

A The corona radiata

B The corpus luteum

C The granulosa cells

D The theca interna

E The corpus albicans

Question #49

The urine is most likely to be hypotonic when the ________.

A body’s water volume is high

B body’s pH is low

C output of antidiuretic hormone is high

D person is lost and deprived of drinking water

E output of natriuretic peptides is high

Question #50

The ________ is not a portion of the urethra.

A prostatic urethra

B spongy urethra

C external urethral orifice

D internal urethral sphincter

E membranous urethra

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