When it comes to the upper leg muscles, adductors often get overlooked, but they’re a stealth power player. Their function seems simple: Squeeze your knees together andboom, you’re contracting your adductors. But adductors also contribute to hip flexion andextension— actions mainly performed ...
The Muscles of the Back: Anatomy and Function January 16, 2025 byUriah Turkel B.P.T Anatomy & Physiology 0 Comments The back muscles play a vital role in providing stability, support, and movement for the spine, shoulders, and upper limbs. They are organized into layers that perform various...
The thigh muscles are part of your upper legs and contain some of the most powerful structures in your body. However, they are prone to injuries if they’re overstrained or impacted while playing a sport. Here’s what you need to know. What Are Thigh Muscles? The thigh muscles are some...
The serratus is also one of three muscles which allow your shoulder blade to rotate upward so you can put your arms over your head. Your serratus, lower traps, and upper traps work together to create upward rotation. Visible serratus muscles look cool, but their function is critically importan...
Muscles of the Upper Limb - Surface and Living Anatomy - Section ThreeELSEVIERSurface & Living Anatomy
similar embryological development patterns. Limb musculature is first seen around the seventh week. The mesenchyme migrates from the dorsolateral cells of somites out to the limb and is differentiated into muscle cells. The shoulder muscles develop earlier than the distal muscles of the upper ...
Of the two chest muscles, the pectoralis major (a.k.a. the pec major) is the one that commands the most real estate. You have one of these large, fan-shaped slabs on either side of your chest. Each one spans half of the upper chest, and has attachment points on the sternum (breas...
Upper esophageal sphincter(UES): Made up of several muscles, most importantly thecricopharyngeus muscle Surrounds the pharyngoesophageal junction Helps control the passage of food into the esophagus from thepharynxPharynxThe pharynx is a component of the digestive system that lies posterior to the na...
The spine is an interconnected complex of bones, nerves, muscles, tendons, and ligaments, any of which can become damaged and cause pain, neurological symptoms, or loss of mobility. 脊柱是由骨骼,神经,肌肉,肌腱和韧带等构成的相互关联的复杂的结构,其...
back muscles below the neck lie deep to the posterior layer of the thoracolumbar fascia. In thelumbar region, where the layers of the thoracolumbar fascia are well-defined, they occupy the compartment between its posteriorand middle layers. Fig. 42.52 Superficial muscles of the back of the neck...