Download Origin - ABRO-BVRO Secretariat

Normal anatomy
Supra-clavicular and
retro-clavicular fossa
Sternocleidomastoid muscle
muscle in the superficial layers of the
anterior portion of the neck
Origin: Manubrium Sterni and
medial portion of the Clavicula
Insertion: Mastoid process of the
Temporal bone
Infrahyoid muscles
(Strap muscles)
 Group of 4 pairs of muscles in the anterior
part of the neck
 Origin: posterior surface of Manubrium
Sterni and Clavicle
 Insertion: Hyoid Bone
Anterior Scalene muscle
 It lies deeply at the side of the neck,
behind the Sternocleidomastoid.
 Origin: Transverse processes
of C3, C4, C5 and C6
 Insertion: First rib
Common Carotid Artery
 Artery that supply the head and neck
with oxygenated blood
 The right common carotid originates in
the neck from the Brachiocephalic
Trunk
 The left arises from The Aortic Arch
in the thoracic region
Subclavian Artery
 A paired major artery of the upper thorax,
below the clavicle.
 Supplies blood to the left and right arm.
 The right Subclavian Artery arises from the
Brachiocephalic Trunk and the left from The
Aortic Arch
 As the Subclavian Artery crosses the lateral
border of the first rib, it becomes the Axillary
Artery
Internal Jugular Vein
 Collects deoxygenated blood from the
brain, face and neck to the heart via the
superior vena cava.
 Origin: Sigmoid Sinus at the base of
the skull.
 Jugular Vein unites with the Subclavian
Vein to form the Brachiocephalic Vein
(innominate vein) at the root of the
neck.
Subclavian Vein
 The Subclavian Vein is a
continuation of the Axillary Vein.
 It runs from the outer border of
the First Rib to the medial border
of Anterior Scalene muscle.
 From here it joins with the
Internal Jugular Vein to form the
Brachiocephalic Vein (innominate
vein).
Axillary regions
Pectoralis Major muscle
 The Pectoralis Major is a thick, fanshaped muscle, situated at the chest
(anterior) of the human body.
 Origin:
- Clavicular head
- Sternocostal head: anterior surface
of the sternum, the superior six costal
cartilages, and the aponeurosis of the
external oblique muscle.
 Insertion: lateral edge of the Humerus.
Pectoralis Minor muscle
 The Pectoralis Minor is a thin,
triangular muscle, situated at the
upper part of the chest, under the
Pectoralis Major muscle
 Origin: 3th to 5th ribs near their costal
cartilage
 Insertion: the Coracoid Process of
the Scapula
Lattisimus Dorsi muscle
 The Lattismus Dorsi is the larger, flat,
dorso-lateral muscle on the trunk and
posterior to the arm.
 Origin:
- Scapula
- 3th or 4th rib
- spinous processes of vertebrae
T7-L5
- iliac crest
 Insertion: humerus
Axillary Artery
 It is a large blood vessel that conveys oxygenated blood
to the lateral aspect of the thorax, the axilla and the
upper limb.
 Origin: the lateral margin of the first rib, before which it
is called the Subclavian artery
 3 parts:
- the part of the artery medial to p. minor
- the part of the artery posterior to p. minor
- the part of the artery lateral to p. minor
 Branches: Subscapular and Humeral arteries (lateral to
pectoralis minor muscle)…
Axillary Vein
 It is a large blood vessel that
conveys blood from the lateral
aspect of the thorax, axilla
and upper limb toward the heart.
 Origin: Basilic vein, Brachial
veins, Cephalic vein.
 Drains to: Subclavian Vein
 It is accompanied along its course
by the Axillary artery