Muscles 2

Created by mlister 

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62 terms

Ulna

Lower arm bone, little finger side

Radius

Lower arm bone, thumb side

Synovial Joint

Allows wide range of movement, contains synovial fluid

Joint Capsule

Connective tissue surrounding joint

Synovial Membrane

Lines inside of capsule and secretes fluid

Articular Cartilage

Covers end of bones to prevent friction

Bursae

Sacs of synovial fluid

Ball & Socket Joint

Allows widest range of movement, shoulders and hips only

Hinge Joint

Allows flexion and extension e.g. elbow

Pivot Joint

Allows rotation e.g. between 1st 2 vertebral bones

Flexion

Bending at knee or elbow, raising arm and leg at shoulder and hip along sagittal plane

Extension

Straightening at knee or elbow, lowering arm and leg at shoulder and hip along sagittal plane

Plantarflexion

Pointing foot at hinge joint of ankle

Dorsiflexion

Bring toes towards shin at hinge joint of ankle

Horizontal adduction

Moving arm at ball and socket joint of shoulder along transverse plane towards midline of body

Horizontal abduction

Moving arm at ball and socket joint of shoulder along transverse plane away from midline of body

Anterior deltoid

Front section of shoulder muscle causing horizontal adduction of upper arm

Posterior deltoid

Back section of shoulder muscle causing horizontal abduction of upper arm

Biceps brachii agonist concentric

Upper arm muscle causing elbow flexion e.g. racquet stroke after contact

Triceps brachii agonist concentric

Causes elbow extension e.g. throwing, preparation for racquet stroke, upwards phase of press-up

Triceps brachii agonist eccentric

Controls elbow flexion due to gravity e.g. downwards phase of press-up

Posterior deltoid agonist concentric

Causes horizontal abduction at shoulder e.g. preparation for forehand racquet stroke

Anterior deltoid agonist concentric

upward phase of wide arm press up, forehand racquet stroke contact and follow through

Anterior deltoid agonist eccentric

Downward phase of wide arm press-up

Gastrocnemius agonist concentric

Calf muscle causing plantarflexion at ankle e.g. in drive phase of running and jumping

Tibialis Anterior agonist concentric

Muscle in front of shin causing dorsiflexion at ankle e.g. when landing in recovery phase of running and on landing a jump

Quadriceps agonist concentric

Cause knee extension e.g. when jumping, kicking and in drive phase of running

Quadriceps agonist eccentric

Controls knee flexion due to gravity e.g. downward phase of squat, preparation and on landing a jump

Hamstrings agonist concentric

Cause knee flexion e.g. recovery phase of running, preparation to kick

Iliopsoas agonist concentric

Causes hip flexion e.g. kicking, recovery phase of running

Gluteus Maximus agonist concentric

Causes hip extension e.g. drive phase of running, preparation for kicking

Gluteus Maximus agonist eccentric

Controls hip flexion due to gravity e.g. downward phase of squats

Bones articulating at elbow

Humerus, Ulna, Radius

Bones articulating at shoulder

Humerus, Clavicle, Scapula

Bones articulating at hip

Femur, Pelvis

Bones articulating at knee

Femur, Tibia, Patella

Bones articulating at ankle

Tibia, Fibula, Tarsals

Synovial fluid

Lubricates and reduces friction between articulating bones

sternocleidomastoid

muscle on side of neck that turns and flexes the head

trapezius

muscle in the upper back and neck that extends the head and moves the shoulder

deltoid

triangular shoulder muscle that abducts the arm and is used as an injection site

biceps brachii

upper arm muscle that flexes the lower arm

triceps brachii

upper arm muscle that extends lower arm

pectoralis major

upper chest muscle that adducts and flexes upper arm

intercostals

muscles between ribs that assist in breathing

rectus abdominus

muscle that extends from the ribs to the pelvis and compresses the abdomen

latissimus dorsi

back muscle that extends from the spine around to the chest that extends and adducts the upper arm

gluteus maximus

buttocks muscle that extends the thigh and is used as an injection site

sartorius

muscle in the front of the thigh that adducts the thigh and flexes the leg used when sitting "Indian style"

quadriceps femoris

muscles in front of thigh that extend the leg

tibialis anterior

muscle in front of lower leg that flexes and inverts the foot

gastrocnemius

calf muscle in back of lower leg that flexes the sole of the foot

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