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Muscles
Practical for rat, Insertion, Action, Origin, location
9
Biology
Undergraduate 1
04/28/2013

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Term
Biceps Branchii
Definition
anterior surface on humans upper arm
O: Scapula
I: Radius
A: Flex lower arm
Term
Triceps Branchii
Definition
Sides and back of upper arm
O: Humerus and Scapula
I: Elbow (olecranon)
A: Extends Lower Arm
Term
Spinotrapezius
Definition
Dorsal Thoracic region (below Acromiotrapezius)
O: Thoracic Vertebrae
I: Spine of Scapula
A: Moves scapula Upward and backward
Term
Acromiotrapezius
Definition
Central muscle of Tapezius group
O: Cervical Vertebrae
I: Scapula
A: Move scapula Dorsally
Term
Latissimus Dorsi
Definition
Posterior to and partial covers Spinotrapezius
O: Thoracic and Lumbar Vertebrae
I: Medial side of Humerus
A: Moves Humerus dorsocaudad (in and back)
Term
External Oblique
Definition
Covers side of abdominal cavity (fibers orthogonal to lat fibers)
O: Lumbodorsal fascia and posterior ribs
I: Linea Alba and pelvis
A: compress and retain viscera acts with abd to form a flexible ventral and lateral body wall (twist and compress core)
Term
Cutaneous Trunci
Definition
attached to skin on lateral and dorsal side
O: Under the upper front leg
I: Skin
A: Moves the skin
Term
Biceps Femoris
Definition
Side of Thigh
O: Ischium
I: Distal Femur and proximal tibia
A: abducts thigh and flexes the shank
Term
Gastrocenmius
Definition
Calk muscle in lower leg
O: Distal Femur
I: Calcaneus (heel) by achilles tendon
A: extends the foot
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