The formation of myelin in the peripheral nervous system is accomplished by these cells.
You have lost the sensation, but not movement, in one of your hands due to a problem with your neurons. Based upon these symptoms, what type of neuron was most likely affected?
The function of the neuromuscular junction is to ________.
You are examining a neuron under the microscope. It appears as a round cell without visible processes. What is true of this neuron?
Of the basic muscle types, this is the "meat" of the body, attached to the skeleton, which moves the limbs and other body parts.
The actual contractile units of muscles extend from Z disc to Z disc. They are ________.
At the neuromuscular junction, the electrical signal of the nerve ________.
Tendons differ from ligaments in that ________.
Acetylcholine (Ach) is the neurotransmitter of axon terminals at the neuromuscular junction. It ________.
Each of the elements that make up a skeletal muscle is surrounded by connective tissue. Which words below correctly pair the connective tissue layer with the corresponding muscle structure?
Groups of fibers are bound into fascicles by a coarse connective tissue called ________.
Nervous tissue contains neurons that ________.
The space between the axon terminal and the sarcolemma of a muscle fiber is called the ________.
Commonly referred to as the ________, this muscle group on the posterior thigh extends the hip.
Ligaments reinforce joints by holding the bones together. What tissue type are ligaments?
The ________ joint is an immovable joint that holds bones of the axial skeleton tightly together to protect the ________.
This pair of muscles includes the prime mover of inspiration, and its synergist.
When both muscles of this pair are contracted simultaneously, they flex the neck forward.
The quadriceps are the prime movers of knee extension. Which muscle group is an antagonist to knee extension?
Like the deltoid muscle that lies over and abducts the shoulder, these two muscles lie over the hip and are prime movers of hip abduction. Neither muscle extends the hip.
This muscle's name tells you what it does.
What is true about the movement properties of the following joints?
The biceps brachii muscle flexes the elbow. What could you do to make the elbow extend?
This large, fan-shaped muscle of the upper chest is the prime mover of arm flexion.
Muscles are strung across joints and can therefore move them. The insertion of a muscle ________.
A joint can only perform these movements: flexion/extension and abduction/adduction. It is therefore a ________ joint.
Which of the following will reduce friction in synovial joints?
Using the functional classification of joints, the intervertebral joint between bodies of adjacent vertebrae is a(n) ________ joint.