| 单词 | biceps brachii |
| 例句 | Other muscle names can provide information as to how many origins a particular muscle has, such as the biceps brachii. Anatomy and Physiology 2013-06-19T00:00:00Z The triceps brachii is the chief antagonist of the biceps brachii. Lameness of the Horse Veterinary Practitioners' Series, No. 1 An example of this is the biceps brachii muscle contracting when a hand weight is brought upward with increasing muscle tension. Anatomy and Physiology 2013-06-19T00:00:00Z As the biceps brachii contract, the angle of the elbow joint decreases as the forearm is brought toward the body. Anatomy and Physiology 2013-06-19T00:00:00Z Here, the biceps brachii contracts as sarcomeres in its muscle fibers are shortening and cross-bridges form; the myosin heads pull the actin. Anatomy and Physiology 2013-06-19T00:00:00Z The two-headed biceps brachii crosses the shoulder and elbow joints to flex the forearm, also taking part in supinating the forearm at the radioulnar joints and flexing the arm at the shoulder joint. Anatomy and Physiology 2013-06-19T00:00:00Z Great strain is put upon these parts because the biceps brachii is the chief inhibiting structure of the scapulohumeral articulation—the one which prevents further flexion of the humerus during weight bearing. Lameness of the Horse Veterinary Practitioners' Series, No. 1 In this case, as tension is released from the biceps brachii, the angle of the elbow joint increases. Anatomy and Physiology 2013-06-19T00:00:00Z This allows a feather to be picked up using the biceps brachii arm muscle with minimal force, and a heavy weight to be lifted by the same muscle by recruiting the largest motor units. Anatomy and Physiology 2013-06-19T00:00:00Z The origin and/or insertion can also be features used to name a muscle; examples are the biceps brachii, triceps brachii, and the pectoralis major. Anatomy and Physiology 2013-06-19T00:00:00Z Deep to the biceps brachii, the brachialis provides additional power in flexing the forearm. Anatomy and Physiology 2013-06-19T00:00:00Z Passing, as it does, over two articulations, the biceps brachii has a somewhat complicated function, being a flexor of the radius and an extensor of the humerus. Lameness of the Horse Veterinary Practitioners' Series, No. 1 As the biceps brachii contracts, the antagonistic triceps brachii needs to relax. Anatomy and Physiology 2013-06-19T00:00:00Z It is extremely superficial and easily seen along the surface of the biceps brachii muscle in individuals with good muscle tone and in those without excessive subcutaneous adipose tissue in the arms. Anatomy and Physiology 2013-06-19T00:00:00Z This synovial bursa forms a smooth groove through which the biceps brachii glides in the anterior scapulohumeral region. Lameness of the Horse Veterinary Practitioners' Series, No. 1 That neuron sends a signal along its axon to excite the biceps brachii, causing contraction of the muscle and flexion of the forearm at the elbow to withdraw the hand from the hot stove. Anatomy and Physiology 2013-06-19T00:00:00Z Thus it is seen, the biceps brachii is a weight bearing structure, as well as one that has to do with swinging the leg. Lameness of the Horse Veterinary Practitioners' Series, No. 1 |
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