Lab exercise 13: BIOL 318

if you were to ride a horse, which muscles would you use to keep your seat out of the saddle as you rode

rectus femoris, vastus lateralis, vastus medialis, gracilis, pectineus, adductor brevis, adductor longus, adductor mangus

how do the gluteus medius and gluteus minimus prevent a person from toppling over as they walk

stabilize pelvis, keeps balance and maintain center of gravity

name a muscle that is an antagonist to the biceps femoris muscle

quadriceps (rectus) femoris

name two muscles that are synergists with the biceps femoris muscle

semitendinosis and semimembranous

insertion of all the muscles of the quadriceps group

tibial tuberosity via patellar ligament

how does the action of the rectus femoris differ from that of the other quadriceps muscles

only quadriceps muscle that flexes the thigh at hip in addition to extending at the knee

how many adductor muscles are there

5

list two muscles in this exercise that are responsible for thigh flexion

rectus femoris, iliopsoas, tensor fasciae latae, sartorius

where do the hamstring muscles originate as a group

ischial tuberosity

action of the vastus lateralis

extend leg

muscle group located on the anterior part of the thigh

quadraceps femoris muscles

is abduction of the thigh movement away from or toward the midline

away from the midline

muscle that flexes the lumbar vertebrae as part of its action

illopsoas

origin of the gastrocnemius

condyles of femur

insertion of the tibialis anterior in humans

metatarsal 1 and cuneifrom 1

how does the action of the fibularis longus in humans differ from that of the fibularis tertius

fibularis longus: plantar flexes and everts foot, fibularis tertitus: dorisflexes and everts foot

action of the extensor hallucis longus

extends hallux, dorsiflexes foot, inverts foot

the calf is made up of which two major muscles

gastrocnemius and soleus

plantar flexion occurs between which muscles

fibularis longus/ brevis, flexor hallucis longus/ digitorum longus, gastrochemius, soleus, tibialis posterior

muscle extends the toes

extensor digitorum longus

muscle that dorsiflexes the foot

tibialis anterior , fibularis tertius

plantar flexion and eversion of the foot occur by the action of which muscle

fibularis longus

insertion of the soleus

calcaneous by the calcaneal tendon

insertion of the fibularis tertius muscle

dorsum of metatarsal 5

insertion of the flexor digitorum longus

distal phalanges of digits 2