Nervous Tissue systems Flashcards
1
Q
Central Nervous System consists of
A
- consists of the brain and spinal cord
2
Q
Motor neuron function
A
- motor neuron carries impulses from CNS to muscles and glands
motor - outgoing - efferent - ventral
3
Q
Sensory neuron function
A
- sensory receives info from the environment and transmits it to CNS
sensory - incoming - afferent - dorsal
4
Q
TypesofNeuroglia and function
A
- provide metabolic support and immune protection
- Astrocyte, Oligodendrocyte, Ependymal, Microglia found in CNS
- Schwann and satellite cells found in PNS
5
Q
Astrocyte function and location
A
- found in the brain and spinal cord
- biochemical support of endothelial cells that form the blood-brain barrier
6
Q
Oligodendrocyte function and location
A
- found in the CNS
- provides support and insulation to axons
7
Q
Ependymal cell function and location
A
- found in CNS
- cerebrospinal fluid secretion
8
Q
Microglia function and location
A
- found in CNS
- brain maintenance
9
Q
Peripheral Nervous System
A
- somatic and autonomic
- autonomic: sympathetic and parasympathetic
10
Q
somatic nervous system
A
- consists of neurons that control voluntary muscle movement such as skeletal muscle
- neurotransmitter is acetylcholine
11
Q
autonomic nervous system
A
- consists of neurons that control involuntary actions such as smooth muscle
- 2 parts: sympathetic and parasympathetic
12
Q
sympathetic nervous system functions
A
- majority in throacic
- functions: inhibits the secretion of digestive fluids, increases heart rate, dilates pupils, constricts blood vessels, regulates the function of glands, particularly the sweat glands
13
Q
parasympathetic nervous system functions
A
- majority in cervical and sacral
- functions: stimulate digestive secretion, slow heart rate, constrict pupils, dilate blood vessels
14
Q
Schwann cells
A
wrap around portions of one axon to form the myelin sheath
- gaps within the myelin are known as nodes of Ranvier which is the cite of depolarization
15
Q
satellite cells
A
surround neuron cell bodies in ganglia and provides support and nutrients
