chapter 11 Flashcards
appendicular skeleton
-stabilize pectoral/ pelvic girdle
-move upper/ lower limbs
-absorb shock
-make up 40% of skeletal muscle
-2 groups
2 groups
-pectoral/ upper limb
-pelvic/ lower limb
things that affect appendicular skeleton
-joint structure
-location of insertion of muscle
-joint range of motion
-type of joint
joint types
-monaxial
-biaxial
-triaxial
pelvic/ upper limb muscle types
-muscles that position the girdle and move arm are coordinating muscles
-muscles thgat move forearms and hand
-move hand and fingers
muscles that move arm
-corachobrachialis: shoulder adduction
-deltoid: arm abduction
-pectoralis major: adduct and medial rotation
-bicept brachii: flex forearm
move hand and fingers
-extrinsic: large muscles that flex/ extend finger joints and give hand strength/ control (they are located in the forearms, outside the hand)
-flexor digitorum superficialis and flexor digitorum profundus and flexor pollicis longus
-intrinsic: smaller for fine hand control, located on metacarpalpharyngeal joints (located in the hand)
muscles that move forearm and hand
-biceps brachii: flex @ elbow/ shoulder
-brachialis: flex @ elbow
-brachioradialis: flex @ elbow
-anconeus: elbow extension
-three triceps brachii: lateral, long and medial
flexor digitorum superficialis
flexion at write and some digits
flexor digitorum profundus
flexion @ wrist and some fingers
flexor pollicis longus
flexion @ thumb
extensor digitorum
flexion @ fingers and wrist
lower limbs
-muscles that move thigh
-muscles that move leg
-muscles that move foot/ toes
muscles that move thigh
-gluteal group
-lateral rotator group
-adductor group
-iliospoas group
gluteal group
-maximun: hip ext
-medius: abduction @ hip
-minimus: abduction @ hip
-tendor fasciae latae: adbuction @ hip
lateral rotator group
-piformis: lateral rotation and hip abduction
-under the gluteus minimus
-spasms= sciatica bc sciatic nerve is there
adductor group
GAP
-gracilis: flex/ medial rotate knee and hip
-adductor brevi, adductor longus, adductor magnus: hip adduction
-pectineus: flex/ adduct hip
iliopsoas group
-iliacus: flex hip
-psoas major: flex hip
move the leg muscles
knee extensors
-3 vastus/ quads
-vastus intermediate, vastus lateralis and vastus medialis: extend lower leg
-rectus femoralis: extend/ flex lower leg
flexors
-hammstrings
-biceps femoris: bend leg and ext hip
-semi memranosus and semi tendinosus: flex lower leg
-popliteus: flex lower elg
muscles move feet and toes
-extrinsic
-tibialis anterior: dorsal flex lets you stand on your heels
-come from leg
-gastrocnemius: plantar flexation
-intrinsic
-originate on the foot
calcaneus tendon
achillies
fascia
connective tissue around individual muscle
deep fascia
separate muscles into compartments
-connective fibers connect adjacent skeletal muscle
-extends btwn bones
superficial fascia
separate soft tissue of limbs into compartments
upper arm compartments
arm
-anterior and posterior compartments
forearm
-anterior, lateral and posterior compartments
anterior compartments
-flexion
-bicep brachii
-brachialis
-coracobrachialis
posterior compartment
-triceps brachii
anterior forearm compartment
-superficial and deep
compartment syndrome
-bleeding into anterior or posterior compartment
-muscle swells
-need fasciotomy to relieve pressure (cut through swollen fascia)
-can cause things like gangrene
burried alive
