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BIO201-Ch10-MusSys-5
BIO201 - Ch 10 - Muscular System Leg & Foot - Marieb/Hoehn - Rio Salado - AZ
| Question | Answer |
|---|---|
| Name the deep fascia of thigh. | The fascia lata |
| The prime mover of thigh flexion is? | The iliopsoas |
| Buttock muscles do what? | Abduct the thigh |
| The sole knee extensor is the __. | Quadriceps femoris muscle - most powerful in body. |
| What is the most powerful muscle in the body? | The quadriceps femoris |
| What are the prime movers of knee flexion? | The hamstrings |
| Name the "ankle brackets" that hold tendons in place where they run to the foot. | Flexor, extensor, & fibular (peroneal) retinaculae - leg fascia. |
| Plantar flexion is most powerful movement of the __ because it lifts entire body weight. | anke (and foot) |
| The __ muscle "unlocks" the extended knee. | Popiletal |
| All muscles of anterior compartment of leg are? | Dorsiflexors of ankle - N=deep fibular nerve |
| "Shin splints" - painful inflammatory conditon of? | Muscles of anterior compartment of leg. |
| Prime mover of dorsiflexion. | Tibialis anterior |
| Muscle pair that shapes posterior calf. | Triceps surae (gastrocnemius & soleus) |
| Largest tendon of the body | Calcaneal/achilles tendon |
| Prime mover of ankle plantar flexion | Achilles/Calcaneal Tendon |
| Torticollis | "Wryneck" - twisting of neck & tilting to 1 side due to injury of sternocleidomastoid muscle on 1 side. |
| Injury to what causes torticollis? | Injury of sternocleidomastoid muscle. |
| Helps flex toes | Flexor digitorum brevis - I=Middle phalanx of toes 2-4, N=Medial plantar nerve (s2 &s3) |
| Abducts great toe | Abductor hallucis, O=calcaneal tuberosity, I=proximal phalanx of great toe, N=medial plantar nerve |
| Abducts & flexes little toe | Abductor digiti minimi, I=lateral side of little toe phalanx, N=Lateral plantar nerve (s2&s3) |
| Flexes great toe | Flexor hallucis brevis, N=Medial plantar nerve |
| Helps maintain transverse arch of foot | Adductor hallucis, N=Lateral plantar nerve (s2&s3) |
| Flexes little toe | Flexor digiti minimi brevis, N=Lateral plantar nerve |
| Intrinsic muscles of foot help to? | Flex, extend, abduct, and adduct the toes. |
| Anteror compartment of thigh | Extends leg |
| Medial compartment of legs | Adducts thigh |
| Posterior compartment of thigh | Flexes leg & extends thigh. |
| Posterior compartment of leg | Plantar flexes foot, flexes toes |
| Anterior compartment of leg of leg | Dorsiflexes foot, extends toes. |
| Lateral compartment of leg | Plantar flexes and everts foot |
| Hamstrings are innervated by? | Sciatic nerve |
| 2 Muscles that extends knee & stabilized it. | Vastus lateralis & vastus medialis |
| Muscle that effect lateral flexion of vertebral colum - important postural muscle | Psoas Major, N=Ventral rami L1-L3 |
| Known as the "tailor's muscle" because it helps effect cross-legged position. | Sartorius, N=Femoral nerve |
Created by:
Ladystorm