Posts

Showing posts with the label muscles

The neck muscles (cervical muscles)

Image
Cervical Muscles: Anatomy, Function, and Clinical Relevance Introduction The neck, or cervical region is a critically important area of anatomy because it supports the head, provides spanning movement, and protects the neurovascular structures. The cervical muscles contribute to posture, head movement, respiration and stabilize the cervical spine. The airflow of these muscles can be painful, grim, headache and limitation. Notifying the anatomy and clinical significance of them is important for physiotherapists, clinicians and students. The cervical muscles can be broadly divided into superficial, intermediate, and deep groups , with each group performing specific functions. 1. Superficial Muscles Sternocleidomastoid (SCM): Origin: Manubrium of sternum and medial third of clavicle Insertion: Mastoid process of temporal bone and superior nuchal line Nerve supply: Spinal accessory nerve (cranial nerve XI) and cervical plexus (C2–C3) Function: Rotates head to opposite sid...

What is Flexor Digitorum Brevis?

Image
Flexor Digitorum Brevis Muscle: Anatomy, Function, and Clinical Relevance Introduction The Flexor Digitorum Brevis (FDB) is a small but vital muscle located in the sole of the foot. It plays a crucial role in maintaining proper toe flexion, providing support to the arches of the foot, and facilitating smooth movements during walking, running, and balancing. Despite being overshadowed by larger muscles in the lower limb, the FDB is often implicated in conditions involving foot fatigue, plantar fasciitis, and biomechanical imbalances. Anatomy Origin The muscle originates from the medial process of the calcaneal tuberosity and the plantar aponeurosis . Insertion The FDB splits into four tendons , each of which inserts into the middle phalanges of the 2nd to 5th toes (digits 2–5). These tendons pass superficially over the flexor digitorum longus tendons. Nerve Supply Innervated by the medial plantar nerve , a branch of the tibial nerve . Spinal roots : S1–S2 Bl...

What is bicep brachii?

Biceps Brachii Muscle Introduction The biceps brachii is one of the most recognizable muscles in the human body due to its prominent appearance in the upper arm. Often associated with strength and aesthetic fitness, this muscle plays a crucial role in upper limb function, especially in lifting and rotational movements. Clinically, it is essential in assessing elbow and shoulder pathologies, and its dysfunction can significantly impact daily activities like lifting, pulling, or carrying. Understanding its detailed anatomy, function, clinical assessment, and therapeutic approaches is vital for healthcare professionals and students in anatomy, physiotherapy, and sports science. Anatomy of the Biceps Brachii Origin The biceps brachii has two heads: Long head : Originates from the supraglenoid tubercle of the scapula. Short head : Arises from the coracoid process of the scapula. Insertion Both heads converge into a single muscle belly and insert at the radial tuberosity ...