The elbow joint consists of the humerus (upper arm bone), radius, and ulna in the forearm. The ulna is the bone on the little finger side of the forearm (remember l in ulna for little finger) and the radius radiates around it. The elbow joint muscles are the biceps brachii, brachialis, brachioradialis, triceps brachii (triceps […]
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The shoulder joint, also known as the glenohumeral joint is a ball and socket joint and consists of the humerus (upper arm bone), clavicle (collar bone), and scapula (shoulder blade). The muscles which stabilize and enable movement of the joint are the pectoralis major, teres major, supraspinatus, deltoid, and latissimus dorsi. Teres major Teres major
A motor unit comprises a motor neurone and all the muscle fibres it supplies. Nerve propagation is the way in which a nerve transmits an electrical impulse. Nerve Structure In order to understand nerve propagation, it is important to understand the structure of a motor neurone (nerve). Each neuron contains a cell body and an
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The respiratory system includes the lungs and airways, as well as the mechanics of breathing, respiratory volumes, and VO2 max. Select from the options below to view more detailed information. Respiratory System Structure The function of the human respiratory system is to transport air into the lungs and facilitate the diffusion of oxygen into the
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Cellular Respiration What is cellular respiration? Cellular Respiration is the process that takes place in cells to convert food into energy. This process is also known as internal respiration. In order to release the maximal amount of energy, the molecules of Carbon, Hydrogen, Oxygen, and Nitrogen that make up our food are stored as a high-energy molecule
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The circulatory system consists of the heart and blood vessels. Its function is to transport blood around the body. Circulatory system anatomy There are three main parts to the circulatory system. These are the systemic, pulmonary and coronary circulation. Systemic circulation carries blood around the body. Pulmonary circulation carries blood to the lungs. Coronary circulation provides the
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Learn all about human muscles and how they work. Here we explain the major skeletal muscles, muscle structure, fibre types, contractions and sliding filament theory. Shapes of Skeletal Muscle What are the different shapes of muscle? There are a number of different muscle shapes within the human body including circular, convergent, parallel, pennate and fusiform.
Bones and function of the human skeleton, types of joints including synovial joints, joint actions, and planes of movement. The Human Skeleton The human skeleton is made up of 206 bones. The functions of the skeleton are to provide support, give our bodies shape, provide protection to other systems and organs of the body, provide
The different skeletal muscle shapes in the human body are circular, convergent, parallel, pennate, and fusiform. Circular Muscles These muscles appear circular in shape and are normally sphincter muscles that surround an opening such as the mouth, surrounded by Obicularis Oris and Obicularis Oculi surrounding the eyes Convergent Muscles These are muscles where the origin
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The spine consists of 33 bones or vertebrae, 24 of which are separate bones allowing movement and 9 which are fused together. The 5 sections of the spine or vertebral column are the cervical, thoracic, lumbar, and sacrum which includes the coccyx. Structure of the spine Intervertebral Discs Each vertebra is separated by intervertebral discs
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