Lecture 9 Flashcards by Mara Erickson

What are the ways fascicles are arranged?

parallel, circular, convergent

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What do parallel fascicles look like?

fibers run parallel to long axis

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What do circular fascicles look like?

concentric rings

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What doe convergent fascicles look like?

broad origin, converge towards insertion

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What are pennate fascicles?

short fibers are obliquely attached to tendon

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What are unipennate fascicles?

only one direction for all fascicles

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What are bipennate fascicles?

two directions for the fascicles

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What are multipennate fascicles?

fascicles go in more than two directions

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What are the ways we name muscles?

action, body region, attachments, orientation, shape/size, number of heads

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What are the origin of muscle attachments?

less movable attachment site

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What are the insertion of muscle attachments?

move movable attachment site

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What is an agonist?

prime mover

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What is an antagonist?

resists movement that the agonist is performing

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What is a synergist?

muscle that helps the agonist with movement

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What is a fixator?

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What is circumduction?

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What is lateral rotation?

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What is medial rotation?

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What is dorsiflexion?

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What is plantar flexion?

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What is inversion?

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What is eversion?

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What is opposition?

What is pronation?

What is supination?

What is protraction?

What is retraction?

What is elevation?

What is depression?

What is part of the epicranius?

frontalis, occipitalis, galea aponeurotica

What is the corrugator supercilii?

What is the buccinator?

What are the muscles of mastication?

masseter, temporalis, medial pterygoid, lateral pterygoid

What are the deep muscles of mastication?

medial and lateral pterygoid

What are the superficial muscles of mastication?

masseter and temporalis

What is mastication?

chewing

What are the elbow flexors?

biceps brachii, brachialis, brachioradialis

What is the origin of biceps brachii?

supraglenoid tubercle and coracoid process

What is the insertion of biceps brachii?

radial tuberosity

What do rotator cuff muscles do?

reinforce the glenohumeral joint and attach the humerus to the scapula

What are the lateral rotator muscles of the humerus?

teres minor and infraspinatus

What are the abductor muscles of the humerus?

supraspinatus

What are the medial rotator muscles of the humerus?

subscapularis

What are the shoulder adductors/flexors?

coracobrachialis and pectoralis major

What are the shoulder adductors/extensors?

teres major and latissimus dorsi

What are the shoulder abductor muscles?

deltoid

What can the deltoid do?

flex and extend the shoulder, shoulder abuctor

What are the knee extensor muscles?

vastus lateralis, vastus medialis, rectus femoris, vastus intermedius

What are the knee flexor muscles?

semitendinosus, biceps femoris, semimembranosus

What are the hip adductor muscles?

pectineus, adductor longus, adductor brevis, adductor magnus, gracilis

What is the origin of gracilis?

inferior pubic ramus

What is the insertion of gracilis?

proximal part of the medial surface of the tibia

What are the hip abductor muscles?

gluteus medius and gluteus minimus

What are the hip flexor muscles?

iliopsoas, psoas major, iliacus, rectus femoris

What are the hip extensor muscles?

gluteus maximus, semitendinosus, semimembranosus, biceps femoris (long head)