Podcast
Questions and Answers
What is the main function of the external intercostal muscles?
What is the main function of the external intercostal muscles?
- Compress the thoracic cavity during expiration
- Control the vertical dimension of the thorax
- Expand the thoracic cavity for inspiration (correct)
- Decrease the size of the thoracic cavity
Which nerve innervates the diaphragm?
Which nerve innervates the diaphragm?
- Intercostal nerves
- Cranial nerve 11
- Spinal roots at C1 and C2
- Phrenic nerve (correct)
What is the consequence of a complete transection of the spinal cord?
What is the consequence of a complete transection of the spinal cord?
- Partial sensory loss below the injury point
- Complete motor and sensory loss at and below the injury point (correct)
- Partial motor loss at the injury point
- Complete motor loss above the injury point
Which muscle group is responsible for decreasing the vertical dimension of the thorax?
Which muscle group is responsible for decreasing the vertical dimension of the thorax?
Injuries above which level in the thoracic spinal cord will impair inspiratory capacity more severely?
Injuries above which level in the thoracic spinal cord will impair inspiratory capacity more severely?
What is the function of sternocleidomastoid muscle contraction in cases of C4 injuries?
What is the function of sternocleidomastoid muscle contraction in cases of C4 injuries?
Where is the spinal cord housed?
Where is the spinal cord housed?
Which part of the nervous system collects peripheral afferent inputs from body extremities?
Which part of the nervous system collects peripheral afferent inputs from body extremities?
What type of neurons do spinal nerves consist of?
What type of neurons do spinal nerves consist of?
Which part of the spinal cord contains cell bodies and unmyelinated axons?
Which part of the spinal cord contains cell bodies and unmyelinated axons?
What is the main function of epidural injections around the spinal cord?
What is the main function of epidural injections around the spinal cord?
What is the function of cerebrospinal fluid around the spinal cord?
What is the function of cerebrospinal fluid around the spinal cord?
Where does the spinal cord terminate/originate?
Where does the spinal cord terminate/originate?
What is the function of neuromuscular spindles?
What is the function of neuromuscular spindles?
Which part of the nervous system controls tonic muscle tone and responses to sudden environmental changes?
Which part of the nervous system controls tonic muscle tone and responses to sudden environmental changes?
What type of stimulus causes the hand withdrawal reflex?
What type of stimulus causes the hand withdrawal reflex?
What is the effect of tapping the patellar tendon on muscle action?
What is the effect of tapping the patellar tendon on muscle action?
What is an essential feature of reflexes involving spinal cord ganglia?
What is an essential feature of reflexes involving spinal cord ganglia?
