Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
5 Cards in this Set
- Front
- Back
|
What is the origin of the spinalis (medial erector spinae) muscle?
|
Spinous processes at inferior vertebral (i.e. lumbosacral) levels
|
|
|
What are the two insertions of the spinalis (medial erector spinae) muscle?
|
THORACIS, CERVICIS, CAPITIS:
1) Spinous processes at superior vertebral (i.e. thoracocervical) levels 2) Base of cranium |
|
|
What innervates the spinalis muscle?
|
Dorsal primary rami of spinal nerves C2-L3
|
|
|
What four arteries segmentally supply the spinalis muscle?
|
SEGMENTALLY:
1) deep cervical a. 2) posterior intercostal aa. 3) subcostal aa. 4) lumbar aa. |
|
|
What are the main actions of the spinalis muscle?
|
Extends and laterally bends both trunk and neck
|
