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Overview

scalenus

(skay-leen-ŭs) one of four paired muscles of the neck (s. anterior, medius, minimus, and posterior). They are responsible for raising the first and second ribs in inspiration and ...

scalenus

scalenus   Quick reference

The Oxford Dictionary of Sports Science & Medicine (3 ed.)

Reference type:
Subject Reference
Current Version:
2007

... One of four muscles (scalenus anterior, scalenus medius, scalenus minimus, and scalenus posterior) located anterolaterally on each side of the neck, deep to the sternocleidomastoid muscle. They have their origins on the transverse processes of the cervical vertebrae and their insertions posteriolaterally on the first two ribs. They flex and rotate the neck, and elevate the first two ribs during...

scalenus

scalenus n.   Quick reference

Concise Medical Dictionary (10 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Medicine and health, Clinical Medicine
Length:
52 words

... n. one of four paired muscles of the neck ( scalenus anterior, medius, minimus , and posterior ), extending from the cervical (neck) vertebrae to the first and second ribs. They are responsible for raising the first and second ribs in inspiration and for bending the neck forward and to either...

scalenus

scalenus n.   Quick reference

A Dictionary of Nursing (7 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Medicine and health
Length:
43 words

...scalenus [skay- leen -ŭs] n. one of four paired muscles of the neck ( s. anterior , medius , minimus , and posterior ). They are responsible for raising the first and second ribs in inspiration and for bending the neck forward and to either side....

Scalenus muscles

Scalenus muscles   Reference library

A-Z of Plastic Surgery

Reference type:
Subject Reference
Current Version:
2009
Subject:
Medicine and health, Surgery
Length:
84 words

... muscles Scalenus anterior: Origin: Transverse process of 3–6 cervical vertebra. Insertion: Tubercle of first rib. Nerve: Anterior rami of C5 and C6. Action: Stabilizes the first rib or rotates and flexes the neck if the first rib is fixed. Scalenus medius: Origin: Posterior tubercle of transverse process of C2–7. Insertion: Superior aspect of neck of first rib. Nerve: Posterior branches of anterior ramus of C3–8. Action: Flexes and rotates cervical vertebra, raises first rib. When acting bilaterally flexes the...

scalenus syndrome

scalenus syndrome n.   Quick reference

A Dictionary of Nursing (7 ed.)

Reference type:
Subject Reference
Current Version:
2017
Subject:
Medicine and health
Length:
52 words

...scalenus syndrome ( thoracic outlet syndrome ) n. the group of symptoms caused by compression of the subclavian artery and the lower roots of the brachial plexus against the outlet of the upper thoracic vertebrae. Loss of sensation and wasting may be found in the affected arm, which may also be painful....

scalenus syndrome

scalenus syndrome   Quick reference

Concise Medical Dictionary (10 ed.)

Reference type:
Subject Reference
Current Version:
2020
Subject:
Medicine and health, Clinical Medicine
Length:
59 words

... syndrome ( thoracic outlet syndrome ) the group of symptoms caused by compression of the subclavian artery and the lower roots of the brachial plexus against the fibrous and bony structures of the outlet of the upper thoracic vertebrae. Loss of sensation, wasting, and vascular symptoms may be found in the affected arm, which may also be...

scalenus

scalenus noun   Quick reference

New Oxford American Dictionary (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
59 words
scalenus

scalenus noun   Quick reference

Oxford Dictionary of English (3 ed.)

Reference type:
English Dictionary
Current Version:
2015
Subject:
English Dictionaries and Thesauri
Length:
59 words
scalenus

scalenus noun   Reference library

The New Zealand Oxford Dictionary

Reference type:
English Dictionary
Current Version:
2005
Subject:
English Dictionaries and Thesauri
Length:
30 words
scalenus

scalenus noun   Reference library

Australian Oxford Dictionary (2 ed.)

Reference type:
English Dictionary
Current Version:
2004
Subject:
English Dictionaries and Thesauri
Length:
32 words
scalenus

scalenus  

(skay-leen-ŭs)one of four paired muscles of the neck (s. anterior, medius, minimus, and posterior). They are responsible for raising the first and second ribs in inspiration and for bending the neck ...
scalenus syndrome

scalenus syndrome  

Reference type:
Overview Page
(thoracic outlet syndrome) the group of symptoms caused by compression of the subclavian artery and the lower roots of the brachial plexus against the fibrous and bony structures of the outlet of the ...
inspiratory mechanism

inspiratory mechanism  

Mechanism by which air is drawn into the lungs. A combination of movements of the ribs upwards and outwards, and of the diaphragm downwards reduces the intrapulmonary and intrapleural pressure, which ...
Adson's test

Adson's test  

Reference type:
Overview Page
Adson’s test arm adducted. A test used in the assessment of Thoracic outlet syndrome.• Patient stands with arm adducted against front of trunk. Feel radial pulse.• Extend neck and turn ...
rebound rib

rebound rib  

A relatively uncommon fracture of the first rib, thought to be due to a violent contraction of the anterior scalenus muscle. It is characterized by poorly localized shoulder pain. Diagnosis depends ...
head rotation

head rotation  

Lateral movement of the head around its axis. Head rotation is effected by the unilateral action of the sternocleidomastoids and deeper neck muscles, including the scalenes.
rebound rib

rebound rib   Quick reference

The Oxford Dictionary of Sports Science & Medicine (3 ed.)

Reference type:
Subject Reference
Current Version:
2007

...rib A relatively uncommon fracture of the first rib, thought to be due to a violent contraction of the anterior scalenus muscle. It is characterized by poorly localized shoulder pain. Diagnosis depends on radiography. Treatment is usually conservative (e.g. ice-treatment; immobilization in a sling;...

Morley’s compression test

Morley’s compression test   Reference library

A-Z of Plastic Surgery

Reference type:
Subject Reference
Current Version:
2009
Subject:
Medicine and health, Surgery
Length:
113 words

...neck from behind. Feel the postero-lateral edge of the sternomastoid muscle. Slip fingers under the edge of the muscle at the root of the neck above the clavicle and feel the anterior scalene muscle. Roll fingers postero-laterally to feel the interscalene groove and then the scalenus medius. • The plexus is felt on the interscalene groove, and reproduction of symptoms is diagnostic. Palpate for masses, listen for bruit. Fullness in the supraclavicular fossa is usually a cervical...

inspiratory mechanism

inspiratory mechanism   Quick reference

The Oxford Dictionary of Sports Science & Medicine (3 ed.)

Reference type:
Subject Reference
Current Version:
2007
Subject:
Science and technology, Medicine and health
Length:
112 words

...is drawn into the lungs. A combination of movements of the ribs upwards and outwards, and of the diaphragm downwards reduces the intrapulmonary and intrapleural pressure, which in turn causes air to rush into the lungs. During resting inspiration, the ribs are fixed by the scalenus muscles, and contraction of the external intercostals elevates the ribcage, while the diaphragm contracts and flattens downward. Additional muscles become active during exercise when inspiration is a much more dynamic process: the scalenes elevate the first and second ribs,...

Brachial plexus – anatomy

Brachial plexus – anatomy   Reference library

A-Z of Plastic Surgery

Reference type:
Subject Reference
Current Version:
2009
Subject:
Medicine and health, Surgery
Length:
419 words

...horn cells). • Dorsal and ventral roots combine to form spinal nerves which split into anterior and posterior rami. The major plexuses are formed from the anterior rami. The posterior rami become the posterior intercostal nerves. Roots: C5–T1, variably C4 and T2. lie behind scalenus anterior. Trunks: Upper, middle, lower between the anterior and middle scalenes. Cross lower part of posterior triangle. Division: Anterior and posterior. Each trunk divides at the lateral edge of first rib. Lie behind clavicle. Cords: Lateral, medial and posterior. Formed by...

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