Anatomical Terms
What is the anatomical term for 'toward the head'?
Superior
Name the two parts of the skeletal system.
Axial and appendicular.
What is the origin of a muscle?
The origin of a muscle muscle is the fixed attachment point that does not move during contraction.
What does angular momentum depend on?
The moment of inertia and angular velocity
What is the result of applying a greater impulse according to Newton's second law of motion?
increased velocity
What connects muscle to bone?
Tendon
What is the structure that covers the end of all long bones?
Articular cartilage
What are the three kinds of muscle contraction?
Isotonic, Isometric, Isokinetic
What is Newton's first law of motion?
Law of inertia- an object in motion will stay in motion unless acted upon by unbalanced force. An object at rest will remain at rest unless acted upon by an external force.
What part of a neuron (nerve cell) receives signals from other neurons?
Dendrites
Describe what anatomical position is.
Identify the kind of bone that the scapula is.
flat bone
What is a single muscle cell called?
muscle fiber
Describe the relationship between Linear impulse and momentum.
Impulse equals a change in momentum
What is sequence of a motor unit signal traveling from the brain to the muscle?
Synapse, dendrite, cell body, axon, motor end plate
Define the term "joint."
A joint is the point where two bones meet; allowing for movement and stability.
Name the main function of the axial skeleton.
Support and protection
What distinguishes slow twitch fibers from fast twitch fibers?
Slow twitch fibers are more efficient for endurance activities, while fast twitch fibers are better for short burst of strength and speed.
What is needed to produce angular motion?
A force acting at a distance from the center of mass.
What joint movements describes a segment of the body moving closer to the midline of the body?
adduction
What is the term for the bone that is medial to the radius?
Ulna
What type of joint allows for a wide range of motion, such as the shoulder?
Synovial joint
Which of the following correctly describes the principle of orderly recruitment of motor units during muscle contraction?
Type I, type IIa, type IIx
What are the three factors that affect stability?
size of support base, high of center of mass, position of the line of gravity
When the arm is performing elbow extension; what kind of lever is present?
first class lever