Introduction The oculomotor nerve is the third cranial nerve (CN III), and its name indicates its function. The oculomotor nerve will innervate muscles that move the eye or its components, as implied by the name alone. The nerve’s ability to move makes it an effective indicator of brain injury. It is a mixed nerve with…
The large, flat latissimus dorsi muscle occupies the majority of the lower posterior thorax. Although the muscle’s main job is to move the upper limb, it also serves as an auxiliary muscle for breathing. Owing to this muscle’s extensive attachment to the thoracolumbar fascia and several vertebral spinous processes, research on the muscle’s function in…
Introduction The optic nerve is the second cranial nerve (CN II) that transmits visual information. The optic nerve has only afferent (sensory) fibres and, like all cranial nerves, is paired. During embryogenesis, the optic nerve develops in the retina, exits the orbit via the optic canal, and travels throughout the central nervous system. The optic…
Introduction The first and smallest cranial nerve is the olfactory nerve. This nerve is one of two that do not connect to the brainstem. Your olfactory nerve anatomy is part of the central nervous system. The process begins in the brain and ends in the upper nose. It is also part of your autonomic nervous…
Finger pain is a prevalent issue that is commonly caused by hand injuries such as fractures, cuts, or broken nails. It can also be a symptom of underlying medical conditions like osteoarthritis, rheumatoid arthritis, and carpal tunnel syndrome. The pain in fingers can be described as a throbbing, cramp-like, or achy sensation that can affect…
Introduction The facial nerve is also called the seventh cranial nerve (CN7). This nerve has two main functions. It transmits sensory information from the tongue and the inside of the mouth. CN7 specifically serves the tip of the tongue, accounting for roughly two-thirds. The nerve extends from the brain stem to the pons and medulla….
The teres minor muscle is a small yet vital muscle located in the posterior shoulder region. Together with the infraspinatus muscle, it forms part of the rotator cuff, a group of muscles and tendons crucial for stabilizing and providing mobility to the shoulder joint. The rotator cuff’s teres minor is an elongated, thin muscle. The…
The teres major muscle, despite its relatively small size, plays a significant role in the movement and stability of the shoulder joint. Situated in the upper back region, it forms part of the rotator cuff group, which comprises muscles crucial for shoulder function. What Is The Teres Major Muscle? Stretching from the inferior posterior scapula…
The trapezius muscle is one of the major muscles of the upper back and neck region in humans. It is a large, triangular muscle that extends from the base of the skull, down the spine, and out to the shoulder blades. Its distinctive shape resembles a trapezoid, hence its name. What Are The Trapezius Muscles?…
Introduction The hamstring vs quadriceps are two of the most significant muscle groups in the human body, which are essential for both movement and sports performance. The hamstrings are three muscles on the back of the thigh, and the quadriceps are four muscles on the front of the thigh. Both are found in the upper…
