External abdominal oblique Muscle Anatomy The external abdominal oblique is a paired muscle located on the lateral sides of the abdominal wall. Along with the internal abdominal oblique and transversus abdominis, it comprises the lateral abdominal muscles. Origin The external abdominal oblique muscle originates from the external surfaces of ribs 5-12. The attaching fibers interdigitate…
Sternocleidomastoid Muscle Anatomy The sternocleidomastoid muscle is a two-headed long, bilateral muscle of the neck, and is the most visible cervical muscle. The main functions of the muscle are rotation of the neck to the opposite side and flexion of the neck. The muscle nerve supply is the accessory nerve. The muscle name sternocleidomastoid is…
It is a distinct muscle located just above the auricularis superior. It is located inferior to the epicranial aponeurosis of the occipitofrontalis muscle. The epicranius is a part of two belly muscles – The temporoparietalis and occipitofrontalis. Origin: Auriculares muscles. Insertion: galea aponeurotica. Nerve supply: temporal branches of the facial nerve. Action: Fixes galeal aponeurosis…
Occipitofrontalis Muscle Anatomy It is a muscle that covers parts of the skull. It consists of two parts or bellies: The occipital belly, near the occipital bone, and the frontal belly, near the frontal bone. In humans, the occipitofrontalis only serves for facial expressions. Origin: Two occipital bellies and two frontal bellies. Insertion: Galea aponeurotic….
Adductor Hallucis Muscle Anatomy Adductor hallucis muscle arises by two heads—oblique and transverse and is responsible for adducting the big toe. Additionally, there are four horizontal layers of foot muscles, ranging from superficial to deep. Adductor hallucis, flexor hallucis brevis, and flexor digiti minimi brevis make up the third layer of plantar foot muscles in…
Anatomy of Flexor Hallucis Brevis Muscle The flexor hallucis brevis muscle is a small but vital muscle located in the foot. As part of the intrinsic muscles of the foot, it plays a crucial role in maintaining proper foot function and stability during walking, running, and other weight-bearing activities. Flexor hallucis brevis muscle is a…
Flexor Digitorum Longus Muscle Flexor digitorum longus is a thin muscle, situated on the tibial side of the leg, part of the posterior compartment of the lower leg. It extends from the tibia’s rear surface to the foot’s phalanges, passing via the leg’s posterior compartment. The quadratus plantae muscle provides functional support to the muscle…
Abductor hallucis muscle is an intrinsic muscle of the foot. It works mainly in the abduction and flexion of the great toe. origin: Medial process of calcaneal tuberosity, Plantar aponeurosis, Flexor retinaculum . Insertion: Medial aspect of the base of 1st phalanx of the hallux. Nerve: Medial plantar nerve. Blood supply: Medial plantar and first…
Flexor digitorum brevis (FDB) is a large muscle located deep in the sole of the foot, just above the central part of the plantar fascia, with which it is firmly united and inferior to the tendon of Flexor Digitorum Longus. It is the central muscle of the superficial layer of the plantar foot muscles. Origin:…
Plantaris Muscle Anatomy one of the superficial muscles of the superficial posterior compartment of the leg, one of the fascial compartments of the leg. Origin Lateral supracondylar ridge of femur above lateral head of the gastrocnemius muscle. Insertion endo calcaneus (medial side, deep to gastrocnemius tendon) . Nerve supply Plantaris is innervated by the tibial…
