MIDTERM 1 Flashcards
1
Q
Lower Motor Neurons (2)
A
- Lesion = Flaccid Paralysis, Hyporeflexia
2. Starts in Spinal Cord and Brainstem
2
Q
Upper Motor Neurons (3 things)
A
- Start in higher centers
- Lesion = Spastic Paralysis
- CNS
3
Q
Deep Sensibility
A
- Crude Touch
- Vibration
- Conscious Proprioception
4
Q
Fasciculus Gracilis
A
- Medial
- T6 and down, Ipsilateral
- No Proprioception
- Synapses at Nucleus Gracilis
5
Q
Fasciculus Cuneatus
A
- Lateral
- Synapses at Nucleus Cuneatus
- T6 and up, Ipsilateral
6
Q
Dorsolateral Fasciculus
A
- Cell bodies in DRG
- Ipsilateral to stimulus
- Synapse at Ipsilateral Nucleus Proprius, 2 levels up
7
Q
Lateral Spinothalamic Tract
A
- Cell bodies in Nucleus Proprius
- Axons cross at Ventral White Commissure, Contra
- Synapse in Thalamus
8
Q
Spinocerebellar Tracts
A
- Proprioception from lower body to Ipsilateral Cerebellum
- LESION leads to Ataxia
9
Q
Corticospinal Fibers : LESION
A
Contralateral Spastic Paralysis
10
Q
Reticular Activating System
A
- Aids in maintaining appropriate levels of consciousness and alertness
- Monitors sensory stimuli and determines what gets up to conscious levels
11
Q
Reticular Formation Lesion
A
May lead to coma or death
12
Q
Solitary Tract and Nucleus receives taste fibers from which Cranial Nerves?
A
- Facial CN VII
- Glossopharyngeal CN IX
- Vagus CN X
13
Q
Medial Longitudinal Fasciculus
A
- Tract connecting CN nuclei and autonomic centers to coordinate vestibular input and head, neck, and eye movements
- Involved in conjugate horizontal eye movements
14
Q
Tyrosine
A
- Dopamine
- Norepinephrine/Epinephrine
15
Q
Tryptophan
A
Seratonin
