BIO-202L Exam #3
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
