This article is about the anatomy, supply, function and clinical disorders of the superficial anterior forearm muscles. Learn all about them here!
License Image The tendons, ligaments and muscles surrounding a joint are what give it strength and stability. Ligaments and tendons are tough fibrous bands. Ligaments attach bone to bone, tendons attach muscle to bone. The anterior longitudinal ligament (ALL) and the posterior longitudinal ligament (PLL) run the entire length of the spinal column. The anterior …
ANATOMY: LEG, ANKLE & FOOT - Each foot is made up of 26 bones, 33 joints & more than 100 muscles, tendons and ligaments, all of which work together to provide support, balance, & mobility. BONES - Approximately 25% of the bones in the body are found in our feet. #Anatomy
- One full-color, two-sided laminated card illustrates major bony features of the foot and ankle - The large central figure shows normal foot and ankle anatomy including bones, muscles and tendons - Call-out illustrations and terms provide greater detail of specific parts - Can use Dry Erase - Use for class or clinic - Bright easy to read two sided views
Apophyseal avulsion fractures are usually the result of a sudden forceful concentric or eccentric contraction of the muscle attached to the apophysis. Avulsion fractures of the pelvis are mos...
The pulley of the ankle bone lifts the arches of the feet using the muscles of the lower leg to lift the bones of the foot into their functional positions.
Floor of Mouth The term floor of the mouth is used differently by different authors, but in all cases it is applied to the floor of the oral cavity proper and does not include the vestibule. It is sometimes used to mean the structures that actually serve as boundaries of the cavity inferiorly. In this sense, the structures that form it would be the superior and lateral surfaces of the anterior part of the tongue and the mucous membrane that is reflected from the side of the tongue to the inner aspect of the mandible. Other authors have used the term to mean the muscular and other structures that fill the interval bounded by the mandible and the hyoid bone. This would mean primarily the mylohyoid muscle, which is then thought of as the boundary between the mouth above and the submandibular triangle of the neck below the muscle. The right and left mylohyoid muscles form a diaphragm that is stretched between the two mylohyoid lines of the mandible and the body of the hyoid bone. The posterior fibers of each muscle insert on the body of the hyoid bone, and from there forward to the symphysis of the mandible the right and left muscles meet each other in a midline raphe. The mylohyoid muscle is supplied by the mylohyoid nerve, which is a branch of the inferior alveolar nerve, which itself is a branch of the mandibular division of the trigeminal nerve. Slightly off of the midline, the anterior belly of the digastric muscle lies along the inferior surface of the mylohyoid muscle. Anteriorly it attaches to the digastric fossa of the mandible, and posteriorly it ends in the intermediate tendon, by means of which it is continuous with the posterior belly of the digastric muscle, which attaches to the mastoid notch of the temporal bone. The intermediate tendon is anchored to the hyoid bone by a fascial loop. The anterior belly is also supplied by the mylohyoid nerve and the posterior belly by a branch from the facial nerve. Closely related to the posterior belly of the digastric muscle, the stylohyoid muscle extends from near the root of the styloid process to the greater horn of the hyoid bone. It usually attaches to the hyoid by two slips, between which the posterior belly and intermediate tendon of the digastric muscle pass. The stylohyoid is supplied by a branch of the facial nerve. The right and left geniohyoid muscles, one on each side of the midline, rest on the superior surface of the mylohyoid muscle. They are attached anteriorly to the mental spines and posteriorly to the body of the hyoid bone. The geniohyoid muscle is supplied by fibers from the first cervical nerve that accompanies the hypoglossal nerve. With the foregoing description of the related muscles in mind, the hyoid bone can be thought of as held in a muscular sling hung between the mandible and the stylomastoid region of the temporal bone, thus making the floor of the mouth quite mobile. All of these muscles can help in the elevation of the hyoid bone and the floor of the mouth. The geniohyoid and stylohyoid muscles determine the anteroposterior position of the hyoid bone, lengthening and shortening the floor of the mouth. The infrahyoid (strap) muscles (omohyoid, sternohyoid, sternothyroid, and thyrohyoid) pull the hyoid bone and floor of the mouth inferiorly. A usage of the term floor of the mouth which is less technical than the two previously given is to think of the structure as the mucous membrane that is reflected from the side of the tongue to the mandible. The attachment of the mucous membrane of this area to the mandible, where it is continuous with the gum, is along a line drawn from the posterior end of the mylohyoid line to a point just above the mental spine.
Knowing our anatomy as practitioners is key to a safe and effective treatment! If you’ve never done cadaver lab, I highly recommend you try it! It’s a great way to understand the human body,...
Students learn all about muscles, including the three different types of muscles in the human body and the effects of microgravity on muscles. They also learn how astronauts must exercise in order to lessen muscle atrophy in space. Students discover what types of equipment engineers design to help the astronauts exercise while in space.
Tendons and Ligaments Tendons and ligaments are composed of connective tissues. They both are important for proper body movement and s...
This condition involves painful swelling of a small fluid-filled sac near the knee joint. It causes pain and can limit movement.
Anatomy of the Human Knee - Infographic The knee is one of the largest and most important joints in the human body as it connects the upper (femur) and lower (tibia) leg. The muscles that move the knee are connected by tendons to the knee bones. In addition to these bones, the joint is comprised of ligaments, which con
Learn practical strategies for managing Achilles tendonitis with treatments, exercises, and prevention tips for pain relief and healing.
We are aiming this post at those in first year and beyond, who want to improve their lower limb ‘movement analysis’ knowledge – i.e. which way can the joints move and what muscle …
40 yrs female with inability to extend 3rd finger of left hand following trauma. Frontal and lateral projections of 3rd finger of left hand showed flexion deformity of proximal interphalangeal joint and extension deformity of distal interphalangeal joint. moderate soft tissue swelling around the proximal phalanx. No evidence of fracture/ avulsion fragment. High resolution sonography of 3rd finger of left hand revealed rupture of central slip of extensor digitorum tendon at its insersion onto the middle phalanx (1st image. see normal central slip of other finger for comparision). The two lateral slips are intact(2nd image). Axial images of normal and abnormal fingers showing edema at the site of disruption with absent tendon fibres and widely seperated lateral slips(3rd image). Anatomy: · The extensor tendons to the four fingers pass across their respective metacarpophalangeal joints. · The deeper fibres of the tendons form the posterior capsule of the joints. · The bulk of each tendon passes freely across each joint. · The tendons then broaden out and divide into three slips on the dorsal aspect of each proximal phalanx. · The central slip passes on to the base of the middle phalanx. · The lateral slips diverge around the central slip and receive strong attachments from the interossei and lumbricals forming the extensor expansion. Boutonnière (“button hole”) deformity: · Injury to the central tendon results in an imbalance in the extensor mechanism. · Flexor digitorum superficialis is unopposed and it flexes the proximal interphalangeal joint. · This forces the head of the proximal phalanx between the lateral bands. · With time, the triangular ligament ruptures causing the lateral bands to displace volar to the axis of motion of the proximal interphalangeal joint and become flexors of the joint. · The extensor hood retracts proximally, causing extension at the metacarpophalangeal and distal interphalangeal joints. · This results in flexion of the proximal interphalangeal joint and hyperextension of the distal interphalangeal and metacarpophalangeal joints, known as the boutonnière (“button hole”) deformity. · Types of injury: 1. Avulsion fracture of middle phalanx 2. Partial rupture with stretching of central slip 3. Complete rupture with seperation Reference : Ultrasound imaging of finger tendons at the bedside in the emergency department, Southern Cross University ePublications@SCU.
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This companion guide to the bestselling Yoga Anatomy Coloring Book helps experienced and aspiring yogis deepen their practice through coloring the essential anatomy engaged in 50 poses. Color your way to yoga knowledge! By understanding your body and its anatomical structure, you can improve your practice, no matter your level. This follow-up to the bestselling Yoga Anatomy Coloring Book--written by yoga instructor, licensed massage therapist, and anatomy teacher Kelly Solloway--shows the proper engagement of muscles in dozens of fundamental and more advanced poses, or asanas. As practitioners color in the beautiful and detailed black-and-white drawings, they can clearly see the asana and relevant anatomy; each illustration includes a label to color and reinforce learning. Solloway explains how the muscles, bones, tendons, and ligaments function together in each pose, and provides advice on working safely and effectively. Additional tips are sprinkled throughout, and 48 perforated flash cards enable readers to quiz themselves, study yoga anatomy on the go, and design custom sequences.
The abdominal muscles between the pelvis and the rib cage provide a mainstay of support for the upper and lower body.
Low back pain can come from a variety of causes and presents certain common symptoms.
Ankylosing spondylitis (AS) is a type of chronic (long-term) arthritis that affects parts of the spine, including the: •bones •muscles •ligaments Arthritis is a common condition that causes pain an…
De Quervain's Syndrome is also known as New Mom's Syndrome. Check out this blog to learn about the different symptoms and treatment options available.
Videos, Images and Interactives for human muscle system
