Observe the paths of all the tendons along the sole of the foot. Which foot arch...

Observe the paths of all the tendons along the sole of the foot. Which foot arch do they help to support? 209 (12)

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Expert Solution

Muscle: It is a soft tissue containing protein filaments like actin and myosin and functions to produce force and motion

Tendon: They are tough band of fibrous connective tissue that usually coonects Muscle to bone

SOLE OF FOOT is Bottom of foot and it is referred as "Plantar Aspect " and it has the thickest layers of skin on the body due yo the weight placed on it.

Sole of foot has 2 types of muscles 1.Intrinsic Muscles 2.Extrinsic Muscles

INTRINSIC MUSCLES
FIRST LAYER
MUSCLE	ORIGIN	INSERTION	ACTION	ARCH SUPPORT
ABDUCTOR HALLUCIS	Medial tubercle of Calcaneum	Medial side,base of proximal phalanx of big toe	Flexes,abducts toe	Medial longitudinal Arch
FLEXOR DIGITORUM BREVIS	Medial tubercle of Calcaneum	Middle phalanx of four lateral toes	flexes lateral four toes	Medial and Longitudinal lateral Arch
ABDUCTOR DIGITI MINIMI	Medial and lateral Tubercles of Calcaneum	Lateral side base of proximal phalanx of 5th toe	Flexes,abducts 5th toe	Lateral Longitudinal Arch
SECOND LAYER
Quadratus Plantae	Medial and Lateral Sides of calcaneum	Tendon of Flexor digitorum Longus	Flex lateral 4 toes	-
Lumbricals	Tendons of flexor digitorum longus	Dorsal expansion of lateral 4 toes	extends toes at Interphalangeal joints	-
THIRD LAYER
Flexor Hallucis Brevis	cuboid,ateral cuneiform,tibialis posterior insertion	medial and lateral sides of base of proximal phalanx of big toe	flexes metacarpophalangeal joint of big toe	Medial longitudinal arch
Abductor Hallucis(oblique Head)	bases of 2nd,3rd,4th metatarsal bones	lateral side base of proximal phalanx of big toe	adducts big toe	Transverse Arch
Abductor Hallucis(Transverse Head)	Capsules of 3,4,5 metatarsophalangeal joints	lateral side of base of proximal phalanx of big toe	Adducts big toe	-
Flexor Digiti Minimi Brevis	Base of 5th metatarsal	lateral side of base of proximal phalanx of small toe	flexes small toe
FOURTH LAYER
Dorsal Interossei(4)	adjacent sides of metatarsals	bases of phalanges and dorsal expansion of corresponding toes	abducts toes,flex metatarsophalangeal joints and extends Interphalangeal joints
plantar Interossei(3)	3rd,4th,5th metatarsals	bases of phalanges and dorsal expansion of 3rd,4th and 5th toes	adduct toes,flexes metatarsophalangeal joints and extend interphalangeal joints

Extrinsic Muscle Tendons of Tibialis Posterior support Medial longitudinal Arch, Flexor Digitorum Longus support Lateral Longitudinal Arch of foot and Flexor Hallucis Longus Medial Longitudinal arch

Sydney Mullin answered 1 year ago

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