Semester 1 anatomy tests/live sessions Flashcards
(33 cards)
smooth muscle
* spindle shaped muscle fibres
* elongated nucleus in the centre of each cell
* no striations
T4 -> nipples
area of skin supplied by one spinal nerve
the ventral ramus of a spinal nerve contains?
motor, sensory and sympathetic fibres
The anterior muscle compartment of the arm flexes the elbow joint
a. true
b. false
**a. true
**
(anterior compartment - flexor compartment)
also flexes shoulder
**
brachial plexus - C5-T1**
Ventral ramus damage (contains motor, sensory and sympathetic fibres) - at left hand side of body
- motor and sensory loss anterolateral (FRONT AND LEFT SIDE)
dorsal root damaged - contains sensory fibres only
* lose sensation from the **back AND anterolateral ** - left side
damage to ventral root - motor fibres only
* lose motor to the back and anterolaterally
what is inside dorsal root ganglion (DRG)
cell body of sensory neurons
what is inside dorsal root ganglion (DRG)
cell body of sensory neurons
looking posteriorly - triceps brachii (posterior compartment)
* crosses 2 joints (shoulder and elbow)
* extension
* nerve supply to TRICEPS -> radial nerve
**e. **
which nerve supplies the triceps brachii
radial nerve
comes from brachial plexus C5-T1
what nerve supplies entire posterior compartment of the arm/forarm/hands
RADIAL
where do you find motor neuron cell bodes
ventral grey horn
where do you find the cell bodies of sensory neurons
dorsal root ganglia
fibrocartilage
intervertebral discs/pubic symphysis
which vertebrae
L2
(L5 starts just about hip)
sagittal MRI
stratified squamous
the sacrum belongs to
- axial
- appendicular
- axial skeleton
the sacrum belongs to
- axial
- appendicular
- axial skeleton
flexion of elbow AND shoulder
which muslce compartment - results in - eversion of the foot
the lateral compartment!
The posterior muscle compartment of the arm performs which main action on the elbow joint?
extension
responsible for bone degradation?
osteoclasts
