Every muscle in the reference on one page: origin, insertion, action, innervation, and blood supply, grouped by body region.
Muscle Attachment Sheet
114 rows · AnatoMemory · sample of the first 3 rows of each section (12 of 114)
Upper limb
Upper limb - Muscle Attachment Sheet. Every muscle in the reference on one page: origin, insertion, action, innervation, and blood supply, grouped by body region.
Muscle
Origin
Insertion
Action
Innervation
Blood supply
Abductor digiti minimi (hand)
Pisiform and the tendon of flexor carpi ulnaris
Medial base of the proximal phalanx of the little finger
Abducts the little finger
Deep branch of the ulnar nerve (C8, T1)
Deep palmar arch / ulnar artery
Abductor pollicis brevis
Flexor retinaculum, scaphoid, and trapezium
Lateral base of the proximal phalanx of the thumb
Abducts the thumb at the carpometacarpal and MCP joints
Recurrent branch of the median nerve (C8, T1)
Superficial palmar branch of the radial artery
Abductor pollicis longus
Posterior surfaces of the ulna, radius, and interosseous membrane
Base of the 1st metacarpal
Abducts and extends the thumb at the carpometacarpal joint
Posterior interosseous nerve (C7, C8)
Posterior interosseous artery
Lower limb
Lower limb - Muscle Attachment Sheet. Every muscle in the reference on one page: origin, insertion, action, innervation, and blood supply, grouped by body region.
Muscle
Origin
Insertion
Action
Innervation
Blood supply
Adductor brevis
Body and inferior ramus of the pubis
Pectineal line and proximal linea aspera of the femur
Adducts the thigh and assists flexion
Obturator nerve (L2, L3, L4)
Deep femoral / obturator arteries
Adductor longus
Body of the pubis, below the pubic crest
Middle third of the linea aspera of the femur
Adducts and assists flexion/medial rotation of the thigh
Linea aspera, medial supracondylar line, and adductor tubercle of the femur
Adducts the thigh; adductor part flexes, hamstring part extends the hip
Obturator nerve (L2-L4) and tibial division of the sciatic nerve (L4)
Deep femoral (perforating) and obturator arteries
Trunk
Trunk - Muscle Attachment Sheet. Every muscle in the reference on one page: origin, insertion, action, innervation, and blood supply, grouped by body region.
Muscle
Origin
Insertion
Action
Innervation
Blood supply
Diaphragm
Xiphoid process, lower six costal cartilages, and lumbar vertebrae (crura at L1-L3)
Central tendon of the diaphragm
Contracts and descends to increase thoracic volume - primary muscle of inspiration; increases intra-abdominal pressure
Phrenic nerve (C3, C4, C5)
Inferior phrenic, musculophrenic, and pericardiacophrenic arteries
Erector spinae
Broad tendon from the sacrum, iliac crest, and lumbar/sacral spinous processes
Ribs, and transverse and spinous processes of vertebrae up to the skull
Bilaterally extends the vertebral column and head; unilaterally laterally flexes the trunk
Dorsal rami of spinal nerves (segmental)
Posterior intercostal, subcostal, and lumbar arteries
External intercostals
Inferior border of the rib above
Superior border of the rib below
Elevate the ribs, increasing the thoracic cavity in inspiration
Intercostal nerves (anterior rami of T1-T11)
Posterior and anterior intercostal arteries
Head & neck
Head & neck - Muscle Attachment Sheet. Every muscle in the reference on one page: origin, insertion, action, innervation, and blood supply, grouped by body region.
Muscle
Origin
Insertion
Action
Innervation
Blood supply
Anterior scalene
Transverse processes of C3-C6
Scalene tubercle of the first rib
Elevates the first rib in inspiration; laterally flexes and rotates the neck
Anterior rami of C4-C6
Ascending cervical / inferior thyroid arteries
Buccinator
Alveolar processes of the maxilla and mandible and the pterygomandibular raphe
Angle of the mouth, blending with orbicularis oris
Compresses the cheek against the teeth; keeps the food bolus between the teeth; aids blowing and sucking
Buccal branch of the facial nerve (CN VII)
Facial / buccal arteries
Digastric
Anterior belly: digastric fossa of the mandible. Posterior belly: mastoid notch of the temporal bone
Intermediate tendon to the hyoid bone (via a fibrous sling)
Elevates the hyoid bone; depresses and retracts the mandible (opens the jaw)