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Definition
 
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Abdominal Muscles definition: Muscles forming the ABDOMINAL WALL including RECTUS ABDOMINIS, external and internal oblique muscles, transversus abdominis, and quadratus abdominis. (from Stedman, 25th ed)
Muscle of abdomen definition: Muscle (organ) which is a part of the abdomen. Examples: external oblique, rectus abdominis.
Muscle of abdomen definition: Muscle (organ) which is a part of the abdomen. Examples: external oblique, rectus abdominis.
Facial Muscles definition: Muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. (From Stedman, 25th ed)
facial muscle definition: muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face.
Facial Muscle definition: Muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. (MeSH)
Intercostal Muscles definition: Respiratory muscles that arise from the lower border of one rib and insert into the upper border of the adjoining rib, and contract during inspiration or respiration. (From Stedman, 25th ed)
Laryngeal Muscles definition: The striated muscle groups which move the LARYNX as a whole or its parts, such as altering tension of the VOCAL CORDS, or size of the slit (RIMA GLOTTIDIS).
larynx muscle definition: intrinsic muscles of the larynx are the vocal, aryepiglottic, arytenoid, cricoarytenoid, cricothyroid, thyroarytenoid, and thyroepiglottic.
Masseter Muscle definition: A masticatory muscle whose action is closing the jaws.
Masseter Muscle definition: Muscles arising in the zygomatic arch that close the jaw. (MeSH)
Masticatory Muscles definition: Muscles arising in the zygomatic arch that close the jaw. Their nerve supply is masseteric from the mandibular division of the trigeminal nerve. (From Stedman, 25th ed)
Muscle of Mastication definition: Muscles arising in the zygomatic arch that close the jaw.
Muscle Cramp definition: A sustained and usually painful contraction of muscle fibers. This may occur as an isolated phenomenon or as a manifestation of an underlying disease process (e.g., UREMIA; HYPOTHYROIDISM; MOTOR NEURON DISEASE; etc.). (From Adams et al., Principles of Neurology, 6th ed, p1398)
muscle cramp definition: sustained and usually painful contraction of muscle fibers.
Muscles definition: Contractile tissue that produces movement in animals.
muscle definition: contractile tissue that produces movement in animals.
Muscle (organ) definition: Nonparenchymatous organ that primarily consists of skeletal muscle tissue aggregated into macroscopic fasciculi by connective tissue; together with other muscles, it constitutes the muscular system. Examples: biceps, diaphragm, masseter, right third external intercostal muscle, external oblique, levator ani, serratus anterior.
Muscle organ definition: Nonparenchymatous organ that primarily consists of skeletal muscle tissue aggregated into macroscopic fasciculi by connective tissue; together with other muscles, it constitutes the muscular system. Examples: biceps, diaphragm, masseter, right third external intercostal muscle, external oblique, levator ani, serratus anterior.
MUSCLE TISSUE definition: Tissue responsible for the body movements and the shape and size changes of interna organs. Muscle tissue is composed of specialized contractile cells. There are two types of muscle tissue recognized: striated and smooth muscle. The striated muscle tissue is further subdivided into skeletal, visceral striated, and cardiac muscle. (NCI)
Muscle definition: One of the contractile organs of the body.
Muscle Tissue definition: Tissue responsible for the body movements and the shape and size changes of interna organs. Muscle tissue is composed of specialized contractile cells. There are two types of muscle tissue recognized:striated and smooth muscle. The striated muscle tissue is further subdivided into skeletal, visceral striated, and cardiac muscle.
Myocardium definition: The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.
myocardium definition: muscle tissue of the heart composed of striated, involuntary muscle known as cardiac muscle.
Cardiac muscle tissue definition: Tissue which consists of cardiac myocytes surrounded by cardiac endomysium. Examples: Cardiac muscle tissue proper, conducting tissue of heart.
Myocardium definition: Muscle layer of organ which has as its parts the myocardium proper and the conducting system of the heart.
Myocardium definition: The main substance of the muscular wall of the heart enclosed between the epicardium and endocardium and composed of striated, involuntary cardiac muscle. (MeSH)
Myometrium definition: The smooth muscle coat of the uterus, which forms the main mass of the organ.
myometrium definition: smooth muscle coat of the uterus, which forms the mass of the organ.
myometrium definition: (mye-o-MEE-tree-um) The muscular outer layer of the uterus.
MYOMETRIUM definition: The smooth muscle lining the uterus. (NCI)
Myometrium definition: The smooth muscle lining the uterus.
Muscle of neck definition: Muscle (organ) which is a part of the neck. Examples: platysma, sternocleidomastoid, cricothyroid muscle.
Neck Muscles definition: The neck muscles consist of the platysma, splenius cervicis, sternocleidomastoid(eus), longus colli, the anterior, medius, and posterior scalenes, digastric(us), stylohyoid(eus), mylohyoid(eus), geniohyoid(eus), sternohyoid(eus), omohyoid(eus), sternothyroid(eus), and thyrohyoid(eus).
Muscle of neck definition: Muscle organ which is a part of the neck. Examples: platysma, sternocleidomastoid, cricothyroid muscle.
Oculomotor Muscles definition: The muscles that move the eye. Included in this group are the medial rectus, lateral rectus, superior rectus, inferior rectus, inferior oblique, superior oblique, musculus orbitalis, and levator palpebrae superioris.
extraocular muscle definition: voluntary muscles which control eye movement.
Oculomotor Muscle definition: A group of six muscles that are responsible for moving the eye.
Palatal Muscles definition: The muscles of the palate are the glossopalatine, palatoglossus, levator palati(ni), musculus uvulae, palatopharyngeus, and tensor palati(ni).
Papillary Muscles definition: Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae.
papillary muscle definition: conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae.
Papillary muscle definition: Region of myocardium which is continuous with the chorda tendinea and the wall of heart.
Pectoralis Muscles definition: The pectoralis major and pectoralis minor muscles that make up the upper and fore part of the chest in front of the AXILLA.
Pectoralis Muscle definition: Muscles of the upper chest. The term may refer to one of two muscles, the pectoralis major and pectoralis minor. The former is a thick muscle in the anterior portion of the chest. Its action involves flexion, medial rotation, and adduction of the humerus. The latter is a thin muscle located beneath the pectoralis major. Its action involves lowering the scapula and raising the ribs.
Pharyngeal Muscles definition: The muscles of the PHARYNX are voluntary muscles arranged in two layers. The external circular layer consists of three constrictors (superior, middle, and inferior). The internal longitudinal layer consists of the palatopharyngeus, the salpingopharyngeus, and the stylopharyngeus. During swallowing, the outer layer constricts the pharyngeal wall and the inner layer elevates pharynx and LARYNX.
Pharyngeal Muscle definition: The muscles of the pharynx, the inferior, middle and superior constrictors, salpingopharyngeus, and stylopharyngeus. (MeSH)
Pterygoid Muscles definition: Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side.
Respiratory Muscles definition: These include the muscles of the DIAPHRAGM and the INTERCOSTAL MUSCLES.
respiratory muscle definition: the group of muscles involved in ventilation (respiration) including the skeletal muscle of the diaphragm and the intercostal muscles.
Temporal Muscle definition: A masticatory muscle whose action is closing the jaws; its posterior portion retracts the mandible.
Psoas Muscles definition: A powerful flexor of the thigh at the hip joint (psoas major) and a weak flexor of the trunk and lumbar spinal column (psoas minor). Psoas is derived from the Greek "psoa", the plural meaning "muscles of the loin". It is a common site of infection manifesting as abscess (PSOAS ABSCESS). The psoas muscles and their fibers are also used frequently in experiments in muscle physiology.
Psoas Muscle definition: Muscles of the lower back whose actions involve the flexion of the hips and lumbar spine. The term may refer to psoas major muscle and psoas minor muscle, both located in the lower back.
Muscle of head definition: Muscle (organ) which is a part of the head. Examples: masseter, orbicularis oculi.
Muscle of head definition: Muscle organ which is a part of the head. Examples: masseter, orbicularis oculi.
Muscle of thorax definition: Muscle (organ) which is a part of the thorax. Examples: external intercostal muscle, diaphragm.
Muscle of thorax definition: Muscle organ which is a part of the thorax. Examples: external intercostal muscle, diaphragm.
Quadriceps Muscle definition: The quadriceps femoris. A collective name of the four-headed skeletal muscle of the thigh, comprised of the rectus femoris, vastus intermedius, vastus lateralis, and vastus medialis.
Muscle, Skeletal definition: A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.
Skeletal muscle tissue definition: Tissue which consists of skeletal muscle fibers surrounded by endomysium. Examples: Skeletal muscle tissue of biceps, Skeletal muscle tissue of diaphragm.
SKELETAL MUSCLE TISSUE definition: Striated muscles that are under voluntary control of the organism. They are connected at either or both ends to a bone and are utilized for locomotion and other movements. (NCI)
Skeletal Muscle Tissue definition: Striated muscles that are under voluntary control of the organism. They are connected at either or both ends to a bone and are utilized for locomotion and other movements.
ear muscle definition: organ which by contraction produces the movements of the external ear; includes the posterior and superior auricular muscles, helicis major and minor, tragicus, antitragus, transversus auricularis and obliquus auricularis.
Muscle, Smooth definition: Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
smooth muscle definition: nonstriated involuntary muscle; one of the muscles of the internal organs, blood vessels, hair follicles, etc; contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei.
Smooth muscle tissue definition: Tissue which consists of smooth muscle fibers surrounded by a reticulum of collagen and elastic fibers. Examples: Arrector muscle of hair, Muscularis mucosae.
Smooth Muscle Tissue definition: Involuntary muscle tissue of the internal organs. It is composed of elongated muscle cells or fibers that are not arranged in a striated pattern and form layers of muscle tissue. The smooth muscle cells contain a contractile apparatus composed of thin and thick filaments and a cytoskeleton composed of intermediate filaments.
striated muscle definition: muscle with fibers divided by transverse bands into striations; in general under voluntary control.
Muscle, Striated definition: One of two types of muscle in the body, characterized by the array of bands observed under microscope. Striated muscles can be divided into two subtypes: the CARDIAC MUSCLE and the SKELETAL MUSCLE.
Striated muscle tissue definition: Tissue which consists of striated muscle fibers surrounded by endomysium. Examples: Skeletal muscle tissue, Cardiac muscle tissue.
Striated Muscle Tissue definition: Striated muscles are appendicular and axial muscles typically connected at either or both ends to the bony skeleton of the body. Striated muscle fibers contain a highly organized, contractile cytoskeletal apparatus with a striated microscopic appearance; muscle contraction is typically under voluntary control.