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Unit 3 pt 3
| Question | Answer |
|---|---|
| _____ attach muscle to bone. | tendons |
| The outermost layer surrounding muscle | epimysium |
| The connective fibers around the muscle that divide it into individual compartments | perimysium |
| The part of a skeletal muscle that is attached to a fixed structure is called the _____. | origin |
| An injection given in the upper arm is called a ______ | deltoid injection |
| The innermost layer surrounds each muscle fiber | endomysium |
| An injection given in the outer thigh muscle is called a | vastus latealis injection |
| An injection given in the buttock is called a | gluetus medius injection |
| The part of a muscle that is attached to a fixed structure is called the __. | origin |
| Smooth muscles; | intestine, contract for long periods of time and do not fatigue easily, non striated, involuntary |
| Skeletal muscles (choose all that apply) | voluntary, contract quickly and fatigue easily, triceps, biceps, striated |
| Cardiac muscles; (choose all that apply) | branched, involuntary, contract quickly and do not fatigue easily, heart, striated |
| These nerve tracts are pink and send sensory impulses to the brain. | ascending tract |
| Ca2+ binds to __________ which moves __________ out of the way so that muscle can contract. | Troponin; tropomyosin |
| These nerve tracts are light brown and conduct motor impulses from the brain to motor neurons reaching muscles and glands. | descending tracts |
| This division of the ANS is known as the fight or flight. It prepares you during a stressful situation. | Sympathetic |
| This division of the ANS is known as the rest and digest it restores peace after a stressful situation. | parasympathetic |
| Myelination is | fatty substance that speeds up conduction |
| Part of the central nervous system (CNS): | Spinal cord |
| Part of the nervous system that carries signals to smooth muscles and glands: | Autonomic motor division |
| Part of the nervous system that carries sensory information and signals to brain and spinal cord: | Sensory division |
| Increased myelination of axons tends to increase: | Speed of impulse conduction |
| Major contributors to resting membrane potential includes ____________________ and non-gated ion channels. | Na+/K+-ATPase pumps |
| Neurons with resting cell membranes tend to have: | More sodium ions outside than inside |
| Time when threshold stimulus does not start another action potential | Absolute refractory period |
| Time when stronger threshold stimulus starts another action potential | Relative refractory period |
| True about an EPSP: | Action potential of postsynaptic neuron becomes more likely |
| True about an IPSP: | Action potential of postsynaptic neuron becomes less likely |
| The central nervous system (CNS) consists of | the brain and spinal cord. |
| The meninges consist of | the pia mater, arachnoid mater, and dura mater. |
| Cerebrospinal fluid is | clear liquid that nourishes and bathes the brain and spinal cord |
| The innermost meninges that contains blood vessels and nerves is ____. | pia mater |
| Cerebrospinal fluid | protects the brain and spinal cord. provides a pathway for waste to enter the blood. informs the autonomic centers in the brainstem and hypothalamus about the internal environment. |
| Reflexes help to control | respiratory rate. heart rate and blood pressure. digestive activities. |
| Major function of muscle: | Move body parts Generate body heat |
| Connective tissue layer that immediately surrounds muscle fibers (cells) inside a fascicle | Endomysium |
| The neurotransmitter that stimulates skeletal muscle contraction: | Acetylcholine |
| The lobe of the brain that allows for; | frontal |
| The site on the folded sarcolemma where ACh binds is | Motor-end-plate |
| The thin sheath of fibrous tissue surrounding each muscle holding it in place. | Fascia |
| Major cause of muscle fatigue: | Lactic acid |
| The biceps brachii flexes the elbow. The triceps brachii extends the elbow. These muscle are _____ to each other. | Antagonists |
| The biceps femoris flexes the knee. The semitendinosus also flexes the knee. These muscle are _____ to each other. | Synergists |
| Definition of a motor unit: | One motor neuron and all the muscle fibers it controls |
| To increase the strength of contraction of a whole muscle, one can recruit: | Motor units |
| The outermost meninges that composed of tough dense connective tissue is the __. | dura mater |
| Meninges located in the middle resembles cob webs. | arachnoid mater |
| The outermost layer of the cerebrum composed of gray unmeylinated mater is called the ___. | Cerebral cortex |
| The area in the frontal lobe responsible for speech production. | broca's |
| The area in the temporal lobe that allows you to understand written and spoken language. | wernicke's |
| An automatic, subconscious response to stimuli within or outside of the body. | reflex |
| The lobe of the brain that; Interpret temperature, touch, pressure, and pain of the skin. It also allows you to understand speech and use words to express your thoughts and feelings. | parietal |
| The lobe of the brain that; controls hearing, interpreting sensory experiences and remember visual scenes, music, and other complex sensory patterns. | temporal |
| The lobe of the brain that; controls vision, combine visual images with other sensory experiences | occipital |
| The lobe of the brain that; processes taste information, Translates sensory info to proper emotional responses. | insula |
| Neurons connect in a circuit and are stimulated over and over again. These actions create | short term (working) memory |
Created by:
alejoh9987
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