BIO-202L Exam #3

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Which structure helps the stomach to stretch as it fills with food

Rugae

What does the descending limb of the loop of henle do?

carries fluid from the cortex to medulla of the kidney

What does the ascending limb of the loop of henle do?

carries fluid from the medulla towards the cortex of the kidney

Bile is stored in the

gallbladder

What are the components of the portal triad in the liver lobule?

hepatic artery, hepatic portal vein, bile duct

Peyer's patches are characteristic of the

ileum

What organ is not part of the digestive tract?

kidneys

The pancreas produces

lipases and amylase, nucleases, peptidases and proteinases, and sodium bicarbonate

Digestion refers to the

mechanical and chemical breakdown of food

Where does urine production begin

nephron

secondary sex organs

other internal and external genitalia

What is an accessory organ of digestion?

pancreas

The prominent ridges in the lining of the empty stomach are called

papillae

3 layers of uterine wall from outer to inner

perimetrium, myometrium, endometrium

Function of female gonads/testes

produce oocytes and hormones

Function of seminiferous tubules

produce sperm

Function of male gonads/testes

produce spermatozoa and hormones

Function of the kidney

produces urine

Function of uterus

protects and supports embryo

What is the function of the pyloric sphincter

regulates the release of chyme into the duodenum

3 functions of vagina

1. Passageway for elimination of menstrual fluids 2. Receives spermatozoa during sexual intercourse 3. Forms inferior portion of birth canal

To which region of the stomach does the esophagus connect?

Cardia

Function of the trigone of the bladder

Channels urine from bladder into urethra

fertilization

Fusion of an egg and sperm cell

What hormone stimulates secretion and contraction of the stomach

Gastrin

Function of spermatozoa

Germ cell that fertilizes egg

Trigone of urinary bladder

Is a triangular area bounded by: Openings of ureters Entrance to urethra

Flow of urine through the urinary system

Kidney→ Ureter → Urinary bladder → Urethra

Four layers of the digestive tract

Mucosa membrane Submucosa layer Muscularis externa layer Serosa layer

Functions of the urinary system

Produces erythropoietin & regulates blood pH

Define peristalsis

wave like muscular contractions that move contents in D.T

Function of gametes

transfer of genetic information

What percentage of nephrons are cortical?

85%

Function of oocyte

A cell in the ovary which undergoes mitotic division to form an ovum (aka it is a developing egg)

What does the term retroperitoneal mean in terms of the kidney?

The kidneys sit outside/behind the peritoneum

4 functions of male glands

activate sperm, provide nutrients to sperm, produce buffers

Where is blood delivered in the glomerulus?

afferent arteriole

The live produces

bile

Function of embryo

developing baby

Brunner glands are characteristic of the

duodenum

The pylorus empties into the

duodenum

Where does blood leave in the glomerulus?

efferent arteriole

90% of nutrient reabsorption occurs in the

small intestine

Function of epididymis

storage and maturation of sperm

primary sex organs

testes and ovaries

Function of ovum

the egg that joins sperm during fertilization to produce an embryo


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