Lecture 2 Flashcards
(20 cards)
Define origin
The most proximal point of the muscle
Define insertion
Where it attaches; most moveable
An antagonist is also called?
Prime mover
The antagonist to quadriceps is?
Hamstrings
The lengthening phase of an isotonic contraction is?
Eccentric
There are how many pairs of spinal nerves?
31
What is a plexus?
Gathering of nerve roots
Which nerve roots comprise the brachial plexus?
C5 - T1
How many cervical nerves are there?
8
Name 3 peripheral nerves.
Median, Radial, Ulnar
What are the 2 major muscle fiber types?
Parallel, Pennate
Which of the 2 muscle fiber types is more powerful?
Pennate
Which cranial nerve innervates trapezius and sternocleidomastoid?
Spinal accessory cranial nerve 11
What is a dermatome?
The area of skin that is innervated by one spinal nerve root
Which 3 cranial nerves are sensory?
1, 2, 8
Name 2 different proprioceptors?
Muscle spindle, GTO
A muscle generates the most tension in which position?
Fully lengthen position
Define Active Insufficiency.
A muscle is shortened so much it can’t generate a lot of tension anymore
According to the Golden Rules of Stretching and Strengthening, to stretch a muscle you must do the __________ of its action?
Opposite of its action
According to the Golden Rules of Stretching and Strengthening, when you are using a free weight, the weight must be moved how, with respect to gravity?
Against gravity
