10.1-10.3 Flashcards
Four Muscles involved in chewing
- Temporalis
- masseter
- lateral pterygoid muscle
- medial pterygoid muscle
True or False: Skeletal muscle contraction helps produce body heat
True
What are the functions of the endomysium? (multi)
A. Separates individual muscle fibers
B. Contains stretch receptors called muscle spindles
C. Creates room for capillaries and nerve fibers to reach every muscle fiber
D. Provide the extracellular chemical environment for each muscle fiber
A. Separates individual muscle fibers
C. Creates room for capillaries and nerve fibers to reach every muscle fiber
D. Provide the extracellular chemical environment for each muscle fiber
Which describes the endomysium?
A. A connective tissue sheath bundling many muscle fibers into a fascicle
B. A connective tissue sheath surrounding an entire muscle
C. The plasma membrane of an individual muscle cell
D. A loose connective tissue layer around each individual muscle cell
D. A loose connective tissue layer around each individual muscle cell
Which describes a muscle fascicle?
A. A single muscle cell
B. A connective tissue structure anchoring a muscle to bone
C. A bundle of muscle fibers surrounded by connective tissue
D. Several muscles grouped together, all performing related functions
C. A bundle of muscle fibers surrounded by connective tissue
The perimysium is a connective tissue sheath that surrounds which of the following? A. Muscle fascicles B. Individual muscle fibers C. Groups of muscle D. The entire muscle
A. Muscle fascicles
Select all that apply: Which are the functions of skeletal muscles? A. Vitamin D synthesis B. Movement C. Heat production D. Joint stability
B. Movement
C. Heat production
D. Joint stability
Select all that apply: The perimysium contains which of the following? A. Blood vessels B. Muscle spindles C. Nerves D. Bone tissue
A. Blood vessels
B. Muscle spindles
C. Nerves
The endomysium is a connective tissue sheath that wraps around which of the following? A. Muscle Fascicle B. Groups of Muscles C. Entire Muscle D. Muscle Fiber
D. Muscle Fiber
A. Muscle Fascicle: The perimysium surrounds fascicles.
B. Groups of Muscles: Groups of muscles are surrounded by fascia.
C. Entire Muscle: The entire muscle is surrounded by the epimysium.
Projections extending from the inner surface of the epimysium form which of the following? A. Sarcolemma B. Endomysium C. Fascia D. Perimysium
D. Perimysium
Which term refers to bundles of muscle fibers, wrapped in connective tissue, within a muscle? A. Striations B. Fascicles C. Compartments D. Tendons
B. Fascicles
Which describes the epimysium?
A. A connective tissue layer around each individual muscle cell
B. A connective tissue sheath surrounding an entire muscle
C. The plasma membrane of an individual muscle cell
D. A connective tissue sheath bundling many muscle fibers into a fascicle
B. A connective tissue sheath surrounding an entire muscle
Which term refers to a sheet of connective tissue that separates neighboring muscles or muscle groups? A. Fascia B. Endomysium C. Perimysium D. Epimysium
A. Fascia
Connective tissue structures that attach bone to muscle are called ______.
tendon
Which provides the extracellular environment for the muscle fiber and its associated nerve ending? A. Perimysium B. Endomysium C. Fascia D. Epimysium
B. Endomysium
Which term refers to a muscle that produces most of the force during a particular joint action? A. Fixator B. Synergist C. Agonist D. Antagoist
C. Agonist
A. Fixator: hold a bone still during a particular action.
B. Synergist: synergist aids the prime mover.
D. Antagonist: oppose the action of the prime mover.
The connective tissue layer that covers the entire muscle is called the______.
Epimysium
The ______ of a muscle refers to the identity of the nerve that stimulates it.
innervation
What is most likely to be the action of the extensor diagitorum? A. Extend the digit B. Rotate the thigh C. Open the eyes D. Flex the elbow
A. Extend the digit
What is a facia?
A. A thin sleeve of connective tissue surrounding an individual muscle fiber
B. The plasma membrane of a muscle cell
C. A thick sheet of connective tissue separating neighboring groups of muscles
D. A connective tissue sheath encircling an individual muscle fascicle
C. A thick sheet of connective tissue separating neighboring groups of muscles
Mulitple Select Question: Which are attachments of the orbicularis oris? A. Modiolus at angle of mouth B. Upper eyelids C. Skin around margin of orbit D. lower eyelids E. Tissue of lips
A. Modiolus at angle of mouth
E. Tissue of lips