Unit 4: 1 & 2 Quiz Questions Flashcards
The excretory functions of the urinary system are performed by the _
- urethra.
- kidneys.
- urinary bladder.
- ureters.
- glomerulus.
kidneys.
Blood leaves the glomerulus through a blood vessel called the _
- vasa recta.
- efferent arteriole.
- renal vein.
- interlobular arteriole.
- afferent arteriole.
efferent arteriole.
Reabsorbed water and solutes enter into the _
- afferent arteriole.
- tubular fluid.
- efferent arteriole.
- glomerulus.
- peritubular fluid.
peritubular fluid.
Nephrons located close to the medulla with long nephron loops are called ________ nephrons.
- cortical
- vasa recta
- juxtaglomerular
- juxtamedullary
- Henle
juxtamedullary
_ is the most abundant organic waste.
- Albumin
- Sodium
- Glucose
- Urea
- Carbon dioxide
Urea
Under normal conditions, glomerular filtration depends on three main pressures. From the list below, what are these three main pressures?
1. glomerular hydrostatic pressure
2. capsular hydrostatic pressure
3. capsular colloid osmotic pressure
4. blood colloid osmotic pressure
5. urinary bladder hydrostatic pressure
- 2, 3, and 4 are correct.
- 1, 2, and 3 are correct.
- 1, 2, and 4 are correct.
- 2, 4, and 5 are correct.
- 3, 4, and 5 are correct
1, 2, and 4 are correct.
Which of these hormones causes the kidney to increase the body’s content of sodium?
- antidiuretic hormone (ADH)
- aldosterone
- calcitonin
- parathyroid hormone (PTH
aldosterone
ADH creates a _ (small or large) volume of _ (dilute or concentrated) urine.
- large; concentrated
- small; concentrated
- large; dilute
- small; dilute
small; concentrated
The mechanism for producing a concentrated urine involves all of the following EXCEPT _
- a high concentration of NaCl in the interstitial fluid that surrounds the collecting ducts.
- the secretion of antidiuretic hormone (ADH) by the posterior pituitary gland.
- obligatory water reabsorption in the proximal convoluted tubule.
- aquaporins being inserted into the membranes of the collecting duct cells.
- an increase in facultative water reabsorption
obligatory water reabsorption in the proximal convoluted tubule
Where does most nutrient reabsorption occur?
Proximal convoluted tubule (PCT)
Sperm production occurs in the _
- ductus deferens.
- seminiferous tubules.
- seminal glands (seminal vesicles).
- epididymis.
- rete testis.
seminiferous tubules.
The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the _
- bulbo-urethral glands.
- preputial glands.
- prostate glands.
- Bartholin glands.
- seminal vesicles
bulbo-urethral glands.
What is the name of the cell at each stage of sperm development, from mitosis to spermiogenesis?
- spermatogonium, spermatids, primary spermatocyte, secondary spermatocyte, sperm
- secondary spermatocyte, spermatid, sperm, spermatogonium, primary spermatocyte
- spermatogonium, primary spermatocyte, secondary spermatocyte, spermatids, sperm
- spermatids, spermatogonium, primary spermatocyte, secondary spermatocyte, sperm
- primary spermatocyte, secondary spermatocyte, spermatogonium, spermatids, sperm
spermatogonium, primary spermatocyte, secondary spermatocyte, spermatids, sperm
A male bodybuilder starts taking injections of testosterone (an anabolic steroid on a daily basis. After three weeks, you expect to observe all of the following, EXCEPT _
- decreased nurse cell stimulation.
- decreased levels of LH and FSH.
- decreased levels of GnRH.
- increased sex drive.
- increased muscle mass.
decreased nurse cell stimulation.
Which layer of the uterus undergoes dramatic changes in thickness and structure during the uterine cycle responding to hormones.
- functional layer of the endometrium
- myometrium
- perimetrium
- basal layer of the endometrium
- epimetrium
functional layer of the endometrium
Which of the following statements concerning oogenesis is false?
- About half the oogonia complete mitosis between birth and puberty.
- Ova develop from stem cells called oogonia.
- Oogenesis begins before birth.
- By the time of their birth, girls have already lost about the majority of their oocytes.
- An ovum completes its last meiosis after it is fertilized
About half the oogonia complete mitosis between birth and puberty.
The hormone that stimulates ovulation is _
- growth hormone.
- testosterone.
- progesterone.
- FSH.
- (LH) luteinizing hormone.
(LH) luteinizing hormone.
exual arousal and orgasm in males and females share a number of similarities EXCEPT __________.
- engorgement of erectile tissue
- rhythmic contraction of the bulbospongiosus muscles
- control by the autonomic nervous system
- Sexual arousal and orgasm in males and females are similar in all of the listed aspects
Sexual arousal and orgasm in males and females are similar in all of the listed aspects
Impotence, common in men as they age, can be caused by which of the following conditions?
- buildup of plaque in arteries
- death of a loved one
- low blood pressure
- All of the listed conditions can be the cause of impotence in men
All of the listed conditions can be the cause of impotence in men
Which of the following is not a similarity between the testis and ovary?
- Both produce gametes.
- Meiosis takes place in both.
- Both produce progesterone.
- Both respond to luteinizing hormone.
- Both respond to follicle-stimulating hormone.
Both produce progesterone.
