extra Flashcards
Na-KATPase
enzyme
moves Na out of cells and K into cells (active transport)
Glucose and fatty acids can be involved in aerobic respiration
True
What does albumin do in blood vessels?
Helps keep water in vessels due to osmotic pressure
What is partial pressure?
The pressure exerted by one gas in a mixture of gases
When a skeletal muscle is stimulated by a nerve cell to contract, what is the first response from the muscle cell?
Release Ca+ within the muscle cell
Schwann cells
- type of glial cell that surrounds neurons
- keeps them alive and sometimes covering them with a myelin sheath, and are the major glial cell type in the PNS
Oligodendrocytes
the myelinating cells of the CNS
Astrocytes
subtype of glial cells that make up the majority of cells in the CNS
Depolarisation
- Na+ ions flood into the cell, needs to pass a certain threshold
- Increase membrane potential (more positive)
Insulin stimulates glycogen synthesis in muscle and liver in the ____ state
FED
Where in the kidney nephron is Na+ most absorbed?
Proximal convoluted tubule
What part of the kidney nephron is most responsible for decreasing the water content of urine?
Loop of Henle
The human gut microbiome:
Contains enzymes to break down non-digestible carbohydrates
Myosin and actin in muscle contractions
contractile proteins/filaments* that work together to enable muscle contractions
During a muscle contraction
myosin heads project towards the actin and link to form cross bridges, causing the heads to bend and rotate, effectively contracting the muscle.
