Muscle and Nervous Tissues Flashcards
(27 cards)
Tissue that is specialized to contract or shorten to produce movement
Muscle tissue
How many directions does muscle tissue move?
1
What are the 4 functions of muscle tissues?
Movement, stabilize body positions, regulate organ volume, thermogenesis
What are the 3 types of muscle cells?
skeletal, cardiac, smooth
What muscle cells are striated?
skeletal and cardiac
What 2 muscle cells are involuntary?
cardiac, smooth
What is the major characteristic of skeletal muscle?
strength
What is the major characteristic of smooth muscle?
endurance
What is the major characteristic of cardiac muscle?
strength, endurance
What is the difference between skeletal and cardiac muscle?
Cardiac muscles have branches
Where can the skeletal muscle be found?
tendons, bones
Where can the cardiac muscle be found?
heart, major arteries
Where can the smooth muscle be found?
organs, viscera
Transmit nerve impulses, aides in their transmission
nervous tissue
Where are nervous tissues found?
brain, spinal cord, peripheral nerves
brain and spinal cord
CNS
What are the 3 functions of nervous tissue?
Sense change in environment, integrates and interprets, sensory input for understanding, responds by contractions or glandular secretions
What are the 2 types of nervous cells?
neurons and neuroglial cells`
Receive and conduct electrochemical impulses from one part of the body to another
neuron
Specialized cells of the nervous system that produce myelin, communicate between cells maintain ionic environment, and nurture the differentiation of neurons
neuroglial cells
How much do neuroglial cells occupy the CNS?
half
Are neurons or neuroglial cells bigger?
neurons
What does it mean if the neuroglial cells stay mitotic?
Fill in spaces of injured neurons after disease and injury; go in to the G0 phase and can be repaired
A by-product of muscle contraction is heat production and is therefore important in homeostasis of body temperature
Thermogenesis
