Term
| What are the 4 basic tissue types? |
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Definition
| Muscle, connective, nervous, and epithelial |
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Term
| Characteristics of muscle tissue |
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Definition
| highly cellular, well vascularized, contratility, has 3 types: skeletal, smooth, and cardiac |
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Term
| Skeletal and smooth muscle cells are elongated. This makes them |
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Definition
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Term
| "Myo", "mys", and "sarco" refer to |
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Definition
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Term
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Definition
| attach to bones/cartilage or (some facial muscles) to skin; single very long, cylindrical multinucleate cells with obvious striations |
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Term
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Definition
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Definition
| unitary muscle in walls of hollow visceral organs; single, fusiform, uninucleate, no striations; slow and sustained contractions |
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Term
| Skeletal muscles: voluntary or involuntary contractions? |
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Definition
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Term
| Cardiac muscles contraction speed |
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Definition
| initiated by pacemaker, autonomic nerves innervate the heart. Sympathetic=speed up and increase contraction strength;parasympathetic=nerves slow and unable to regenerate/replace scar tissue |
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Term
| What are examples of where smooth muscle is located? |
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Definition
| intestines, bronchials, bladder, uterus, digestive tract, blood vessles; involuntary |
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Term
| What are examples of where smooth muscle is located? |
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Definition
| intestines, bronchials, bladder, uterus, digestive tract, blood vessles; involuntary |
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Term
| each skeletal muscles is a discrete __________ made of muscle tissue and ____ |
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Definition
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Term
| Skeletal muscles are served by its own supply of what? |
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Definition
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Term
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Definition
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Term
| Bundles of muscle fibers= |
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Definition
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Term
| What surrounds individual fibers, fascicles and the entire muscle? |
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Definition
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Term
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Definition
| dense regular CT that surrounds muscle; fibers go in every which way. |
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Term
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Definition
| fibrous CT surrounds each fascicle |
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Term
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Definition
| fine areolar CT surrounds individual fibers |
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Term
| Skeletal muscle cell is commonly termed as a |
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Definition
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Term
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Definition
| organized group of muscle fibers bounded by a perimysium |
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Term
| Indirect attachment- skeletal muscle |
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Definition
| epimysium extends beyond muscle |
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Term
| Attachment of skeletal muscles form a _____, a ropelike strcuture, or ______, a sheetlike structure. |
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Definition
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Term
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Definition
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Definition
| indirect, sheetlike attachment (eoicranial) |
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Term
| Direct attachment of skeletal muscles |
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Definition
| epimysium of muscle fuses directly to periosteum of bone or perchondrium of cartilage |
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Term
| skeletal and cardiac muscles are |
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Definition
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Term
| Skeletal and cardiac muscles are both |
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Definition
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Term
| Muscle in the small intestine is |
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Definition
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Term
| The diaphragm muscle (attached to rib cage) is |
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Definition
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Term
| True or False: muscles can push or pull. |
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Definition
| False. Muscles can only pull (contraction). They pull on skin or bone to which they attach |
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Term
| Muscles cross joints, which means? |
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Definition
| They contract to create movement at joints |
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Term
| Muscles have to points of attachment: |
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Definition
| Origin (O) and Insertion (I) |
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Term
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Definition
| O, fixed or immovable point of attachment |
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Term
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Definition
| I, attaches to a movable bone |
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Term
| In general, insertion moves ______ origin when muscles contract |
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Definition
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Term
| On limbs, ____ is distal to _____ |
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Definition
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Term
| True or False: O and I must be on different bones |
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Definition
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Term
| What movement will occur if the muscle contracts in the humerus? |
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Definition
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Term
| Elbow joint: what movement is produced? |
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Definition
| Forearm flexion at the elbow joint. |
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Term
| What is true about temporalis muscle? |
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Definition
| Skeletal muscle because it attaches to the skeleton, origin of muscle is a direct attachment, insertion of muscle is an indirect attachment (tendon), when the muscle contracts, I moves toward O and the jaw is elevated |
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Term
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Definition
| agonists; has the major responsibility for a specific action |
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Term
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Definition
| oppose or reverse a particular movement |
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Term
| If the muscle action is elbow flexion, then the agonist and antagonist would be: |
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Definition
agonist: biceps brachii
antagonist: triceps brachii |
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Term
| If the muscle action is elxbow extension, then the agonist and antagonist would be: |
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Definition
agonist: triceps brachii
antagonist: biceps brachii |
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Term
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Definition
| add force to a movement; assist prime mover; reduce undesirable movements |
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Term
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Definition
| synergists that immobile ("fixate") a bone; example: fixators at wrist prevent wrist flexion while fingers flex |
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Term
| How do we name the muscles? |
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Definition
| location for bone or bone region |
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Term
| Where are intercostal muscles located? |
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Definition
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