HONDROS BIO 253 FINAL EXAM (NEW
CHAPTERS ONLY!)EXAM 100%
SOLVED
Urinary system - ANSWERfunnnn..
urinary system functions - ANSWERregulate homeostasis of body fluid- water and ph
regulation
-waste excretion
-ph regulation
-vit d sythesis
-epo
organs of the urinary system - ANSWERkidneys-primary organs
-ureters
-urinary bladder
-urethra
shape size and location (medial side) - ANSWER-approx. 11cm by 7 cm by 3 cm
-postural abdominal cavity (between T12 and L3)
-Renal Fascia and perirenal fat capsules (renal fat pad): heavy cushion of fat that
surrounds each kidney
Ureter - ANSWERtube from the kidney to the urinary bladder
Urinary Bladder - ANSWERstorage space for urine
urethra - ANSWERTube for excretion of urine
the ureter is composed of 3 layers: - ANSWERthe mucous lining, muscular middle layer
fibrous
the bladder is lined with urothelium that forms folds called____________ -
ANSWERragau
the ureter wall has 3 layers - ANSWERtransitional epithelium, smooth muscle, fibrous
coat
parasympathic involuntary - ANSWER-Urine moves through the ureters by peristalsis
the ureters enter the bladder on the _________ side - ANSWERlower
, the oblique path of of the ureter through the wall of the bladder, permits the junction to
act as a ____________ reducing the bladder as it becomes full - ANSWERvalve
Urinary bladder structure - ANSWER-lined by transitional epithelium
-Composed mostly of smooth muscle tissue
Parasympathic involuntary
-can distend considerably
Function - ANSWER-reservoir for urine before it leaves the body
-aided by the urethra, expels urine from the body
Urethra - ANSWER-small tube lined with mucous membranes that extends from the
floor of the bladder to the exterior of the body
- Smooth muscles parasympathetic Involuntary
-
How long is the urethrae in females ? - ANSWER3 cm long
-meatus is in the vestibule
How long is the urethra in males - ANSWER20 cm
- passes through the prostate
-enters base of the penis
-meatus is at the end of the penis
micturition - ANSWERas the bladder volume increases, micturition contractions (of the
detrusor muscles) increase and the internal urethral sphincter relaxes.
-smooth muscle parasympathetic involuntary
-urge to urinate comes with micturition contractions
the external urethral sphincter muscle is under __________ control control skeletal
muscle - ANSWERVoluntary
Micturition - ANSWERAlso called urination, is a mechanism for, is a mechanism for
voiding the bladder
the functional unit of the kidney is called a ________ - ANSWERnephron
what do nephrons make? - ANSWERurine
each kidney contains about ______________ nephrons - ANSWERone million
two major parts of nephrons - ANSWER-renal corpuscle
-tubules
nephrons are connected to - ANSWERthe collecting ducts
CHAPTERS ONLY!)EXAM 100%
SOLVED
Urinary system - ANSWERfunnnn..
urinary system functions - ANSWERregulate homeostasis of body fluid- water and ph
regulation
-waste excretion
-ph regulation
-vit d sythesis
-epo
organs of the urinary system - ANSWERkidneys-primary organs
-ureters
-urinary bladder
-urethra
shape size and location (medial side) - ANSWER-approx. 11cm by 7 cm by 3 cm
-postural abdominal cavity (between T12 and L3)
-Renal Fascia and perirenal fat capsules (renal fat pad): heavy cushion of fat that
surrounds each kidney
Ureter - ANSWERtube from the kidney to the urinary bladder
Urinary Bladder - ANSWERstorage space for urine
urethra - ANSWERTube for excretion of urine
the ureter is composed of 3 layers: - ANSWERthe mucous lining, muscular middle layer
fibrous
the bladder is lined with urothelium that forms folds called____________ -
ANSWERragau
the ureter wall has 3 layers - ANSWERtransitional epithelium, smooth muscle, fibrous
coat
parasympathic involuntary - ANSWER-Urine moves through the ureters by peristalsis
the ureters enter the bladder on the _________ side - ANSWERlower
, the oblique path of of the ureter through the wall of the bladder, permits the junction to
act as a ____________ reducing the bladder as it becomes full - ANSWERvalve
Urinary bladder structure - ANSWER-lined by transitional epithelium
-Composed mostly of smooth muscle tissue
Parasympathic involuntary
-can distend considerably
Function - ANSWER-reservoir for urine before it leaves the body
-aided by the urethra, expels urine from the body
Urethra - ANSWER-small tube lined with mucous membranes that extends from the
floor of the bladder to the exterior of the body
- Smooth muscles parasympathetic Involuntary
-
How long is the urethrae in females ? - ANSWER3 cm long
-meatus is in the vestibule
How long is the urethra in males - ANSWER20 cm
- passes through the prostate
-enters base of the penis
-meatus is at the end of the penis
micturition - ANSWERas the bladder volume increases, micturition contractions (of the
detrusor muscles) increase and the internal urethral sphincter relaxes.
-smooth muscle parasympathetic involuntary
-urge to urinate comes with micturition contractions
the external urethral sphincter muscle is under __________ control control skeletal
muscle - ANSWERVoluntary
Micturition - ANSWERAlso called urination, is a mechanism for, is a mechanism for
voiding the bladder
the functional unit of the kidney is called a ________ - ANSWERnephron
what do nephrons make? - ANSWERurine
each kidney contains about ______________ nephrons - ANSWERone million
two major parts of nephrons - ANSWER-renal corpuscle
-tubules
nephrons are connected to - ANSWERthe collecting ducts
