ANT2120 - Anatomy - Quiz 5 - Blood Vessels Associated with Nephrons and Associated Structures

Carries blood into the glomerulus

afferent arteriole

Carries blood out of the glomerulus

efferent arteriole

Efferent arterioles give rise to __________ _________

peritubular capillaries

Special smooth muscle cells forming a cuff-like arrangement around the afferent arteriole

juxtaglomerular cells

Specialized cells located in the part of the DCT that lies between the afferent and efferent arterioles

macula densa

Formed by the macula densa and juxtaglomerular cells

juxtaglomerular apparatus

The juxtaglomerular apparatus secretes _____

renin

The juxtaglomerular apparatus helps maintain a constant ___ (_________ _______ ____)

GFR (glomerular filtrate rate)

Surround the proximal and distal convoluted tubules

peritubular capillaries

Peritubular capillaries give rise to the ____ _____

vasa recta

Surround the loop of Henle of juxtamedullary nephrons (NOT associated with cortical nephrons)

vasa recta

Transport urine from the kidneys to the ________ ________

urinary bladder

Stores urine (average capacity of a bladder is 700-800 ml)

urinary bladder

Transports urine from the bladder to the outside of the body

urethra

The male urethra is ______ than the female urethra (15-20 cm compared to 4 cm) and transports both _____ and _____

longer, urine, semen

Average capacity of the bladder is 700-800 ml (T or F)

true

When the urine reaches 200-400 ml, ______ _________ in the wall of the bladder send action potentials to the brain

stretch receptors

This leads to contraction of the ________ ______ (smooth muscle) and relaxation of the ________ _________ __________ (smooth muscle)

detrusor muscle, internal urethral sphincter

The external urethral sphincter is ________ ______

skeletal muscle