Ch. 26 Urinary System Homework

Nephron

urine-forming structure of the kidney

Renal Medulla

region of the kidney deep to cortex; contains collecting duct

Renal Columns

extensions of renal cortex found in between renal pyramids

Papillary Duct

urine flowing through this structure drains into a minor calyx

Adipose Capsule

located between renal fascia and renal capsule

Renal Papilla

apex of renal pyramid

Major Calyx

urine flowing through this strucutre drains into the renal pelvis

Renal Hilum

vertical fissure in concave surface of kidney through which blood vessels and ureters pass

Renal Capsule

covers outer surface of kidney

Renal Fascia

dense irregular connective tissue that covers the adipose capsule and attaches the kidney to abdominal wall

Renal Pelvis

receives urine from the major calyces

Renal Sinus

space within kidney that is adjacent to renal medulla, contains calyces and renal pelvis

Minor Calyx

cup-like structure that is located in renal sinus that receives urine from openings of papillary ducts

Renal Pyramid

cone-like strucutre that is located in renal sinus that receives urine from openings of papillary ducts

Renal Cortex

outermost region of the kidney, contains renal corpuscles

Urinary Bladder

detrusor muscle is the main muscle for this strucure

Prostatic Urethra

region male urethra that passes through the prostate gland

Urethral Opening

two openings in posterior urinary bladder wall

Spongy Urethra

region of male urethra that passes through penis

Trigone

area bounded by urethral openings and internal urethral orifice

External Urethral Sphincter

voluntary skeltal muscles in urogenital diaphragm that allows passage of urine to exterior of body

Ureter

carries urine from renal pelvis to urinary bladder

External Urethral Orifice

urine is excreted through this opening

Internal Urethral Sphincter

circular smooth muscle that involuntarily controls passage of urine from the urinary bladder to the urethra

Internal Urethral Orifice

anterior opening in urinary bladder that leads into urethra

Membranous Urethra

region of male urethra that passes through urogenital diaphragm

Afferent Arteriole

blood vessel that delivers blood to glomerulus

Peritubular Capillaries

blood from the efferent arteriole flows into this capillary bed

Glomerular Capsule

structure that surrounds glomerulus and collects filtrate

Loop of Henle

section of renal tubule that descends into medulla

Glomerulus

capillary network within the renal corpuscle

Renal Capsule

strucure composed of glomerulus and glmerular capsule

Efferent Arterioles

blood vessel that drains blood from glomerulus

Vasa Recta

capillary loops that extend from the efferent arteriole and run along loop of henle (nephron loop) of juxtamedullary nephrons