Muscles upper body
What muscle is the strongest elbow flexor?
Brachialis
The sizable __________ tendon connects to the posterior aspect of the calcaneus.
Achilles
Which bones form the sides of the skull, deep to the ears?
Temporal
__________ are muscles that perform the opposite action from each other at the same joint.
Antagonists
Which muscle initiates abduction of the arm at the shoulder joint?
Supraspinatus
_________ is a flat, triangular muscle located in the posterior knee area. "unlocks" knee from full extension.
Popliteus
The first cervical vertebra, C1, is also known as what?
Atlas
The ________ motor units are recruited last.
largest
This muscle is involved in all actions at the glenohumeral joint except adduction.
Deltiod
________ attaches to six different tarsal bones, highly involved in medial arch support.
Tibialis Posterior
What is the larger, weight-bearing bone of the inferior leg?
Tibia
What is the name of the thin filament within a skeletal muscle fiber?
Actin
What muscle elevates and retracts the mandible and covers much of the lateral temporal and parietal bones?
Temporalis
__________ is the largest and deepest of the thigh adductors.
Adductor magnus
Which curve of the vertebral column occurs in the chest region?
Thoracic
A bundle of muscle fibers is known as a ______.
fascicle
The three muscles of the Erector Spinae group ______ and _____ the spine.
extend and laterally flex
Which muscle lies directly superficial to the sciatic nerve and is in a position to impinge it, causing sciatica?
Piriformis
The Olecranon Process is located on which bone?
Ulna
What is the Neurotransmitter primarily involved in muscle contraction?
Acetylcholine