Week 2 - Muscles and muscle contraction
Week 5 - Respiratory Physiology
Week 6 - Circulatory System
Week 6 - Acid and Bases
Week 11 - Thermoregulation
RANDOM
100
This part of your nervous system is responsible for creating voluntary movement.
What is Somatic?
100
During an expiration, the chest recoils, ________ decreases and __________ increases resulting in air being "pushed out".
What is decreases and increases?
100
As a blood vessel narrows, blood velocity _________.
What is increases?
100
Molecules that contain and can donate H+ ions in solutions are called ___________, while molecules that can receive a H+ ion are called ____________.
What is an acid and a base?
100
The temperature of this part of the body normally ranges from 34-35ºC but is heavily influenced by the environment around.
What is the skin?
100
This is the ability for capillaries to vasocinstrict and vasodilate to modulate blood flow to specific organs.
What is autoregulation?
200
Depolarisation of the cell from a large stimulus results in a rapid influx of Na+ into the cell, bringing the membrane potential up towards the membrane potential for Na+, while depolarisation results in the the membrane potential coming back down towards the membrane potential for K+ due to _____________.
K+ channels opening early on, followed by an increase in K+ channels opening, and a closing of the Na+ channels.
200
A spontaneous pneumothorax results in a collapsed lung because the lung has a hole which results in __________ pressure and ____________ pressure equalising.
What is intra-pleural and intra-alveolar pressure?
200
As a blood vessel dilates, blood flow ____________.
What is increases?
200
When the pH of the body drops below ~7.35 it is called _____________. When the pH of the body increases above ~7.45 it is called ______________.
What is acidosis and alkalosis.
200
Autonomic thermoeffector activation is characterised by being ______________ and _____________.
What is involuntary and finite?
200
During muscle contraction, a cross bridge is created by these two structures binding.
What is actin and myosin?
300
When a sarcomere (the functional unit of a muscle cell!) contracts, ______ band remains the same while _____ zone shortens.
What is the A-Band and the H-Zone?
300
In spirometry, this is the combination of tidal volume and inspiratory reserve volume.
What is inspiratory capacity?
300
The _________ have a 'muscular' portion, allowing them to withstand high pressure, while ________ are a low pressure system with special pumps to assist with its function.
What is the arteries and veins?
300
These three buffer systems help the body to maintain appropriate acid/base balance.
What is chemical/protein buffers, the respiratory system and the renal system?
300
Autonomic thermoeffectors for heat stress that are activated during heat stress include: vasodilation and sweating. This is considered to be the most effective out of the two.
What is sweating?
300
Increasing the force of a muscular contraction can be done by doing these two things.
What is increasing the stimulation frequency (i.e., more action potentials) and recruiting additional motor units.
400
Efferent motor signals travel down the ____________ and decussates to the other side of the spinal cord where it continues traveling down the corticospinal tract to synapse with a lower motor neuron.
What are the Pyramids of the Medulla?
400
Gas diffusion within the body flows from ___________ to a __________ partial pressure.
What is high to low?
400
The flow of fluid across the capillary wall depends on these to factors.
What is the force of blood pressure (or hydrostatic pressure) on the walls and osmotic pressure within the capillaries.
400
The respiratory system helps to defend against acidosis and alkalosis because CO2 can readily bind with H2O, creating this weak acid.
What is H2CO3 (bicarbonate)?
400
Conscious perception has two components. The one that tells you if something is hot or cold is the _________________ component, while the one that tells you if the environment is pleasant or comfortable is the _______________ component.
What is descriptive and hedonic?
400
At a pO2 of 25mmHg, haemoglobin is 50% saturated which means that on average ______ of ______ heme groups are bound with O2.
What is 2 of 4?
500
Nicole is performing rehab exercises for a hamstring tendinopathy injury. She is tasked with performing exercises in the first 2 weeks, where she has to contract the muscle without shortening or lengthening it. This is considered a ___________ muscle contraction.
What is isometric?
500
_____mmHg, _____mmHg, ____mmHg, _____mmHg are the associated concentrations of CO2 within the atmosphere; alveolar air/pulmonary veins; tissues; and systemic veins/pulmonary arteries in the image below (respectively).
What are: 0.3; 0.40; 0.46; 0.46
500
20L of fluid leaves the capillaries every day but only 85% is returned. The other 15% eventually gets returned after passing through this system.
What is the lymph system?
500
In respiratory acidosis, the measure for pH and pCO2 would be _____________, while in metabolic acidosis, the measure of pH and HCO3- would be _____________.
What is opposite and the equal (or the same)?
500
The behavioural response to heat or cold stress is believe to be preceded by _________________ and is initiated to prevent _________________.
Less costly autonomic thermoeffectors and is initiated to prevent the use of more costly autonomic thermoeffectors.
500
The conscious decision to engage in thermal behaviour occurs at this location in the brain.
What is the medial prefrontal area 10?