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Human Physiology 2 Body System - Week 2 - Lecture 5 -Kidneys Flashcards | StudBud
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Human Physiology 2 Body System - Week 2 - Lecture 5 -Kidneys
Human Physiology 2 Body System - Week 2 - Lecture 5 -Kidneys
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Answers
1
Internal sphincters are made of smooth muscle and are?
Concentrically contracted
Eccentrically contracted
Actively contracted
Passively contracted
2
In micturition, apart from spinal reflexes what else modulates skeletal muscle?
Venous System
Central Nervous System
Lymphatic System
Nervous System
3
When dicarboxylates become concentrated inside the cell, this creates a gradient for?
Facilitated diffusion
Primary active transport
Secondary active transport
Tertiary active transport
4
Micturition is a spinally-mediated reflex that is controlled both consciously and unconsciously
True
False
5
What creates a gradient for secondary active transport which moves dicarboxylates into the cell
Facilitated diffusion into the tubule lumen.
Na+/K+-ATPase keeping intracellular Na+levels low.
Na+/K+-ATPase keeping intracellular Na+levels high.
Facilitated diffusion into the interstial fluid
6
In Tubular secretion; K+ can diffuse into the lumen via 1.___ channels on the 2.____ membrane
1. Leak 2. Luminal
1. Filter 2. Basolateral
1. Leak 2. Basolateral
1. Filter 2. Luminal
7
When there is an increase stretch in the bladder, what causes contraction of the smooth muscle?
Decrease sympathetic output
Decrease parasympathetic output
Increase sympathetic out
Increase parasympathetic output
8
External sphincters are made of skeletal muscle and are controlled by ____ and stays contracted
Passive contraction
Motor neurons
Active contraction
Nerve fibers
9
Organic anion transporter secrete a range of 1.____ and 2.____ organic anions.
1. Intracellular 2. Extracellular
1. Endogenous 2. Exogenous
1. Inner 2. outer
1. Primary 2. Secondary
10
Organic anions are mainly secreted into the?
Collecting Duct
Proximal tubule
Tubule lumen
Distal tubule
11
Secretion of K+ is regulated by the adrenal hormone
Testosterone
Cortisol
Aldosterone
DHEA
12
Plasma clearance is defined as the 1.____ of plasma that is completely 2.____ of a substance
1. Volume 2. Cleared
1. Rate 2. Cleared
1. Rate 2. Absorbed
1. Volume 2. Absorbed
13
Which of the following is one of the limitations of carrier-mediated transport?
Carrier proteins are vulnerable to competition
Carrier proteins can not be excreted when at saturation
Carrier proteins are invulnerable to competition
Carrier proteins are able to be excreted when at saturation
14
Tubular secretion is the selective transfer of?
substances from tubular lumen to peritubular capillaries
substances from tubular fluid to peritubular capillaries
substances from peritubular capillaries to tubular lumen
substances from peritubular capillaries to tubular fluid.
15
Na+/K+-ATPase pumps 1.___ out of the epithelial cells also pumps 2.___ into epithelial cells.
1. Na+ 2. K+
1. Na+ 2. Na+
1. K+ 2. K+
1. K+ 2. Na+
16
If a substance is filtered and reabsorbed but not secreted, Which is true
Clearance > GFR
None of the answers
Clearance = GFR
Clearance < GFR
17
Hypokalaemia is?
Low plasma Na+
High plasma Na+
High plasma K+
Low plasma K+