Dance Phys Quiz II
Terms
undefined, object
copy deck
- The skeleton provides _______; musculature provides ________.
- structure; POWER
-
Function of Muscles:
to provide _____for _______ and maintenance of a body\'s position in ______as it works against a force like _____. - power;movement; space; gravity
- General Types of Muscles(there are 3)
-
Cardiac
Smooth (vicera/organs)
Striated (voluntary) - 2 Kinds of Striated Muscles:
-
Slow Twitch
Fast Twitch -
-type of striated muscles
-slow to activate and deactivate
-deeper
-\"holders\"
- Slow Twitch Muscles
-
-type of striated muscles
-quick to activate and deactivate
-more superficial
-\"movers\" - Fast Twitch Muscles
- Muscle Groups
-
-Prime Movers
-Antagonists
-Neutralizers (synergists)
-Stabilizers (fixators) - What are muscles made of? (order from big to small)
- tissue--> bundle of fiber-->myofibrils-->sarcomeres-->myofilaments=overlapping thick (myosin) and thin (actin) protein strands
-
Muscles only ____
Muscles contract in the ____ and ___equally on both ends
The action of a muscle on a joint will be determined by _____ _____ and the ____ of a muscle
Muscles must oppose _____ to produce or hold a position. If ______ -
PULL
center; pull
attachment point; path
gravity;gravity - The nervous system is the _____ of human _____ with ______ and ______ environments.
- director; interaction; internal; external
- 2 Parts of the Nervous System
- Central Nervous System and Peripheral Nervous System
-
-part of nervous system
-brain, brainstream, spinal cord - Central Nervous System
-
-type of nervous system
-nerves radiating out to all parts of the body - Peripheral Nervous system
- -regulates viscer, resperation, hormones, cardiac muscle
- Autonomic NS
- regulates movement and the perception of movement
- Somatic Nervous System
- fundamental unit of the nervous system
- Neuron
- 3 parts of the Neuron
-
Dendrites - receive stimulation
Cell body - passes information on to
The Axon - which transmits impulses to the dendrites of other neurons - A Motor Unit is comprised of:
-
-a neuron
-a motor end plate (the point at which the neuron attaches to muscle fibers
-the muscle fibers to which a neuron is attached - type of neuron that carries input to the CNS
- Sensory Neuron (afferent)
- type of neuron that carries output to the muscles
- Motor Neurons (efferent)
- The law of ___ or _____ means that when a neuron is activated all the muscle fibers connected with that neuron _____
- all; nothing; contract
- connection point of a connection between neurons
- Synapse
- space between neurons in the synapse
- Synaptic gap