Exam 4: Concepts

What type of epithelium is present in the thin segments of the Loop of Henle?

simple squamous

What hormone serves to increase sodium reabsorption at the expense of potassium ions?

aldosterone

What is the vessel that supplies blood to the kidney called?

renal artery

What portion of the kidney receives urine from several distal convoluted tubules?

collecting duct

The process of eliminating urine from the body is called:

micturation

The hollow ball of cells that forms after the 32-cell stage is the:

blastula

How many functional ova are produced from each primordial follicle?

one

Where specifically in the testis does spermatogenesis occur?

seminiferous tubules

Where are the kidneys relative to the peritoneal membrane?

retroperitoneal

Will increasing the diameter of the efferent arterioles to the glomerulus increase or decrease the rate of glomerular filtration?

decrease

What is the functional unit of the mammalian kidney?

nephron

What portion of the kidney receives urine from several distal convoluted tubules?

collecting duct

At several places along the length of the kidney tubule, additional material is removed from the blood plasma by either active or passive transport. This process is called:

tubular secretion

The process of nuclear division that results in the halving of chromosome number and leads to the formation of gametes is called:

meiosis

What event triggers the secondary oocyte to complete Meiosis II?

sperm penetration

During which period of life does spermatogenesis begin?

puberty

Will decreasing the number of glucose carrier proteins in the renal tubule increase or decrease the amount of glucose eliminated in the urine?

increase

What is the storage site of urine before it is eliminated from the body?

urinary bladder

What portion of the nephron is the site of the filtration of blood plasma and the formation of urinary filtrate?

glomerulus

The process of eliminating urine from the body is called:

micturation

A fertilized ovum is called a:

zygote

What type of cells surround the oocyte within the follicle and produce estrogen?

granulosa cells

Is a spermatozoan diploid or haploid?

haploid

Will increasing the diameter of the efferent arterioles to the glomerulus increase or decrease the rate of glomerular filtration?

decrease

What is the vessel that drains blood from the kidney called?

renal vein

What portion of the renal tubule receives urinary filtrate from the loop of Henle?

distal convoluted tubule

At several places along the length of the kidney tubule, material that passed into the urinary filtrate are returned to the blood plasma by either active or passive transport. This process is called:

tubular reabsorption

The process of nuclear division that results in the halving of chromosome number and leads to the formation of gametes is called:

meiosis

What structure does the follicle develop into after ovulation?

corpus luteum

Where specifically in the testis does spermatogenesis occur?

seminiferous tubules

Where in the nephron does filtration take place?

glomerulus

Will high blood pressure increase or decrease the rate of glomerular filtration?

increase

What is the name of the tube that carries urine from the urinary bladder to the exterior?

urethra

What portion of the renal tubule receives urinary filtrate from the proximal convoluted tubule?

loop of henle

The process that results in the formation of the three germ layers is:

gastrulation

Does spermatogenesis require the testes to be warmer or cooler than body temperature?

cooler