Muscles 14 Flashcards

spine of scapula
Terms Definitions
neutral substance
elevates mandible
O-Transverse processI-Transverse processes on aboveA-Lateral flexes spineN-Posterior primary rami
Semitendinosus (Origin)
Ischial tuberosity
adducts the humerus
ischial tuberosity
semitendonous origin
masseter action
elevates mandible
Inferior Oblique
Origin:  MaxillaInsertion:  EyeballAction:  Eye movement (Upward-Oblique Angle)
Orbicularis Oculi
Location:  Encircles Eye
Origin:  frontal, maxilla, orbit
Insertion:  Eyelid
Action:  closes eyelid
Origin of Soleus
superior tibia
ischial spine
gemellus superior origin
Origin: Mandible below incisorsInsertion: Skin of chinAction: Protrudes lower lip; wrinkles chin
Pectoralis Major and Minor
specialized, impulse-conducting cell that is the functional unit of the nervous system
Arm Flexion
Pectoralis Major; Deltoid; Coracobrachialis; Biceps Brachii
Semimembranosus (Insertion)
Medial condyle of tibia
gluteus maximus
extends and abducts thigh
Orbicularis Oris
Origin: Maxilla, Mandible
Insertion: Lips
Action: Closes Lips
Pelvic Diaphragm

levator ani, coccygeus, piriformis
extends hip, flexes knee *
pericardial fluid
lubrication containsed within pericardium
The sternocleidomastoid muscle is found in the ________.
Quadriceps (Rectus Femoris, Vastus Lateralis, Vastus Medialis, and Vastus intermedius)
c.t. sheath around a fascicle
pronator teres
pronates hand and flexes forearm
Arm Extension
Latissimus Dorsi; (Posterior) Deltoid; Teres Major; Triceps Brachii
Origin:  Posterior surface of head and proximal one-fourth of fibula; middle one-third of tibia; interosseous membraneInsertion:  CalcaneusAction:  Plantar flexes foot; steadies leg on ankle during standing
Tibialis Posterior (Insertion)
Tarsals and MTs 2-4
Gluteus minimus
Origin: Lateral surface of ilium
Insertion: Greater trochanter of femur
Action: Abducts thigh; medially rotates thigh
O- T2-T5 spines
I- vertebral border of scapula
A- elevates and adducts scapula and rotates it downward; stabilizes scapula
elongated straplike muscle that passes across anterior thigh to medial knee; abducts thigh, rotates it laterally & medially
muscle deeper than the quadratus lumborum and connects the vertebrae to each other and acts to extend/rotate the vertebral column
Sarcoplasmic Reticulum
Specialized endoplasmic reticulum of muscle cells.
linea aspera
biceps femoris (short head) origin
thick filament, 15 nm in diameter
Origin: acromion process, spine of scapula, and clavicleInsertion: deltoid tuberosity of humerusAction: abducts arm, extends or flexes humerus
External obliques
Origin: lower ribsInsertion: Iliac crest, pubic symphysisAction: side bendsTrunk
Innervation of Tensor Fasciae Latae
superior gluteal
major and minor. muscles extending from the zygomatic bone to the angle of the mouth; elevates uper lip as in laughing
Communication between the _________ and _________ allows large concentrations of calcium ions to be brought rapidly into the cell.
t-tubules; sarcoplasmic reticulum
Flexes Neck; one: lateral flexion and rotation of head
Trapezius (Insertion)
Clavicle, spine of scapula, acromion process
Epicranius Occipitalis (Origin)
Occipital bone and mastoid process
Extensor hallucis longus
Extends great toe; dorsiflexes foot
25. A- retracts scalp, pulls scalp posterior
O- c7 threw t12I- Upper Lateral Clavicle, acromionMiddle: Spine of scapulaLower: root of spineA- elevation, upward rotation of scapula, retraction of scapula, depression and upward rotation of scapula
Origin of Pectineus
pectineal line of pubic bone
Prime Mover
Muscle that bears the major responsibility for effecting a particular movement; an agonist.
1)plantar flexion2)flexes toes3) assists with supporting longitudinal arch when active
flexor digitorum longus action
skeletal muscle
muscle type responsible for movement of the skeleton, under voluntary motor control
Critical thinking
An approach to thinking characterized by skepticism and thoughtful analysis of statements and arguments-for example, probing arguments' premises and the definitions of terms is critical thinking.
Depresses lower lip
Depressory labii inferioris - VII
Psoas Major
O: Bodies of vertebrae and intervertebral disks from the 12th thoracic to the 5th lumbar vertebraeI: the Lesser Trochanter of the FemurN: The Lumbar Plexus
Insertion of Pectoralis Major
greater tubercle; bicip groove
the science or branch of anatomy dealing with muscles.
Rectus Abdominis
Origin: Crest of pubis and symphysis pubis
Insertion: Xiphoid process of the sternum and costal cartilages
Action: Tenses abdominal wall and compresses abdominal contents; also flexes vertebral column
Spinalis Thoracis (Insertion)
Spinous Processes of Superior Thoracic Vertebrae
Flexor carpi radialis
Attachment (origin)
Action: Flexes wrist and abducts hand
Attachment (origin): Medial epicondyle of humerus
Peroneus (Fibularis) longus
lateral muscle; plantar flexon & eversion of foot; also support arch
Isometric Contraction
Contraction in which the muscle does not shorten (the load is too heavy) but its internal tension increases.
proximal phalynx of digit 5
abductor digiti minimi insertion
Power refers to the inverse of the probability of making a Type II error
flexor carpi ulnaris
O:medial epicondyle of humerus I:base of metacarpal 5 A:adduct hand
Action of Diaphragm
pulls central tendon, increase thorax length during inspiration
striated muscles
also called skeletal muscles are attached to bones and are voluntary or consciously controlled.
ERECTOR SPINAE(true back muscles)iliocostalislongissimusspinalis
O:ilium & sacrum; INS:vertebrae, ribs, spine and skull; ACT:BILATERAL... extends the trunk, neck, & head, UNILATERAL... laterally flexes trunk, neck & head; INNERV: dorsal rami
Flexor hallucis longus
Plantar flexes foot; flexes MP, PIP, and DIP, jonts of great toe
Deeper Muscles of the Foot
Flexor Digiti Minimi Brevis
Adductor Hallucis
Flexor Hallucis Brevis
what is the epimysium
an even tougher "overcoat" of connective tissue (covers the entier muscle)
upper 2/3 of tibia(lateral side of anterior border) and IOM
tibialis anterior origin
Brachialisaction: flexes forearm at elbow
origin: anterior shaft of humerusinsertion: coronoid process of ulna
O: The Body and Inferior Ramus of the PubisI: The shaft of the tibia below the medial condyleN: The obturator Nerve
a large muscle in front of the thigh, the action of which extends the leg or bends the hip joint.
Biceps Femoris (Insertion)
Head of fibula and lateral condyle of tibia
what is excitability?
the ability to receive and respond to a stimulus (responsiveness or irritability)
endo, peri, epi
deep to superficial, what is the order of perimyseum, epimyseum, endomyseum?
Peroneus longus
O: The head and upper 2/3s of the fibulaI: the base of the 5th metatarsal bone and the medial cuneiform boneN: the superficial peroneal nerve
EXTERNAL ABDOMINAL OBLIQUEmuscles of the Thorax and Abdomen
O: ribs 5-12; INSER:linea alba via rectus sheath; ACTION:compresses abdominal contents, rotate trunk; INNERV:intercostal nerves

Iliocostalis Lumborum Insertion (1)
inferior borders of the angles of the lower 6 or 7 ribs
name the compartments of skeletal muscle
1. epimysium- closely surround a muscle 2. perimysium extend the epimsium deep into a muscle and sections the muscle it form bundles called fasicles which are bundles of skeletal muscle 3. endomysium surround each skeletal muscle fiber within a a fasicle
How many "biceps" mm are there, and where are they found?
Biceps brachii-arm
Biceps femoris -- posterior part of the thigh, on of hamstring mm 
Which mm. attach to the coracoid process?
pec minor, short head of biceps brachii, and coracobrachialis
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