Dense connective tissue that separates an individual skeletal muscle from adjacent muscles and holds it in position.
As lactate accumulates, a person develops an ___ that must be repaid.
An increase in the number of motor units being activated during a contraction is called___.
Origin: Anterior surface of humerus
Insertion: Lateral surface of radius above styloid process
Action: Flexes forearm at elbow
Origin: Bodies and transverse processes of lumbar vertebrae
Insertion: Lesser trochanter femur
Action: Flexes thigh at hip
Neurons communicate with the cells that they control by releasing chemicals called___.
Origin: Lateral epicondyle of humerus and proximal ulna
Insertion: Anterior and lateral surface of radius
Action: Supinates forearm and hand
The opposing ends of cardiac muscles cells are connected by structures called__.
Origin: Medial epicondyle of humerus and coronoid process of ulna
Insertion: Lateral surface of radius
Action: Pronates forearm and hand
Another protein that is synthesized in muscle cells and imparts the reddish-brown color of skeletal muscle tissue.
Causes an action.
A motor neuron and the muscle fibers that it controls constitute a___.
Threadlike that lie parallel to one another. They play a fundamental role in muscle contraction.
Origin: Head and shaft of fibula and posterior surface of tibia
Insertion: Posterior surface of calcaneus
Action: Plantar flexion of foot
Verticales
Origin: Lateral epicondyle of humerus
Insertion: Posterior surface of phalanges in fingers 2-5
Action: extends wrist and joints of fingers.
Origin: Iliac fossa of ilium
Insertion: Lesser trochanter of femur
Action: Flexes thigh at hip
Origin: Lower edge of pubis
Insertion: Proximal medial surface of tibia
Action: Abducts thigh
Origin: Anterior superior iliac spine
Insertion: Proximal medial surface of tibia
Action: Flexes leg at knee
Works against the action.
A small gap that separates the membrane of the neuron and the membrane of the muscle fiber.
They help force the contents of certain tubular organs along their lengths. They can occur in the small intestines.
Even when a muscle appears to be at rest, its fibers undergo some sustained contraction.
A skeletal muscle fiber normally does not contract until the neurotransmitter____ stimulates it.
The less movable end of the muscle is called its____.
Other layers of connective tissue, that extend inward from the epimysium and separate the muscle tissue into small sections called fascicles.
Red blood cells carry the oxygen, loosely bound to molecules of ___, the protein responsible for the red color of blood.
The contractile response of a single muscle fiber to a single impulse is called a__.
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It prints on two pages.
Big puzzles won’t always print on one page — the clues and grid are the smallest we could make them while keeping them readable for everyone.
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