Exam 1 Flashcards
What are the origin and attachment point of Ligamentum Nuchae
Origin: superior nuchal line
Attachment: C7 spinous process
What is the ligament that means yellow?
Ligamentum Flavum
Which vertebrae are characterized by their TRANSVERSE foramina?
cervical
What is the attachment point of the posterior longitudinal ligament?
the posterior surface of the vertebral bodies
What is the number of the cervical, thoracic, and lumbar vertebrae?
7, 12, 5
What are the spinal nerve rami that supply deep back muscles & the skin of the back?
dorsal
How many pair of cervical spinal nerves are there?
8
What is the area of skin supplied by one spinal nerve
dermatome
What is a broad flat muscle tendon?
aponeurosis
ventral rami are formed by what kind of fibers?
mixed
Dorsal roots are formed by what fibers?
sensory
Thoracic vertebrae are characterized by…?
costal fascets
what are ligamentum flavum?
vertebral ligaments between adjacent lamina
Nerve that supplies internal organs
vagus
C2 vertebra
axis
origin of deep back muscles
sacrum
muscle of erector spinae that rotates head
longissimus
originates from acromium spine of the scapula & amp clavicle
deltoid
superficial back muscle that inserts into the humerus
latissimus dorsi
Which muscle elevates the scapula?
trapezius
muscle that only depresses the scapula
pec minor
nerve that supplies trapezius
accessory
posterior intercostal arteries are branches of the
thoracic aorta
What is the origin of the superior trunk of the brachial plexus?
C5 & C6
What does the superior brachial plexus supply?
posterior and lateral forearm
What motor functions are associated with the superior trunk?
muscles of the posterior compartment of the arm and forearm. Flexors of the forearm. Thenar muscles. Posterior axillary muscles
What is the motor innervation of the superior trunk?
infraspinatus and supraspinatus
What is the OIAI of the teres major?
O: posterior aspect of the inferior angle of the scapula
I: crest of the lesser tubercle of humerus
A: adducts and medically rotates arm
I: lower and sub scapular nerve
What is the OIAI of the Multifidus muscle?
O: posterior iliac spine, dorsal surface of sacrum, mammillary process of lumber vertebrae, transverse process of thoracic vertebrae, articular process of C4-C7 vertebrae
I: spinous process of lumbar thoracic and cervical vertebrae
A: extends neck and trunk, stabilizes vertebral column
I: medial branches of posterior ramo of cervical, thoracic and lumbar nerves
What is the OIAI of the semi spinalis muscle?
O: transverse process of T6-T-11
I: Spinous process of C6-C4
A: Extends and rotates trunk
I: medial branches of posterior rami of thoracic nerves
Scalenes Posterior OIAI
O: posterior tubercles of transverse process of C4-C6 vertebrae
I: external rub surface of 2nd rib
A: laterally flexes neck and elevated second rib
I: anterior rami of 4th to 6th cervical nerves
What is the OIAI for Longissimus Colli
O: transverse process of T1-T6 vertebrae
I: posterior tubercles of transverse process of c2-c6 vertebrae
A: Extends & laterally flexes the neck at cervical vertebral joints
I: Lateral branches of posterior rami of cervical & upper thoracic nerves
What is the OIAI of the Longissimus capitis muscle?
O: transverse process of C4-T4
I: mastoid process of temporal bone
A: Extends, rotates, & laterally flexes the head
I: Lateral branches of posterior rami of cervical & upper thoracic nerves
What is the OIAO of the Semispinalis capitis?
O: transverse process of T1-T6 ,Spinous process of C4-C7
I: area located between superior and inferior nuchal lines of occipital bone
A: extends and rotates the neck 2 cervical vertebral joints
I: medial branches of post rami of lower cervical & upper thoracic nerve.
What is the OIAI for the spinals colli muscle?
O: Nuchal ligament, spinous process of C7-T2
I: Extends laterally & flexes neck @ vertebral joints
A: Extends and laterally flexes neck
I: Posterior rami of lower cervical & upper thoracic nerves
What is the OIAI for the Deltoid muscle?
O: Lateral 1/3 of clavicle; acromion process and spine of scapula
I: Deltoid tuberosity of humerus
A: ABducts, flexes, extends, medially rotates & laterally rotates arm @ glenohumeral joint
I: Axillary nerve
What is the OIAI for Subscapularis?
O: sub scapular fossa of scapula
I: lesser tubercle of humerus
A:medially rotates & stabilizes arm
I: Upper and lower sub scapular nerves
What is the OIAI for supraspinatus?
O: Supraspinatus fossa of scapula
I: greater tubercle of humerus
A: ABducts and stabilizes arm
I: supra scapular nerve C5-6
What is the OIAI Coracobrachialis?
O: coracoid process of scapula
I: middle 3rd of the medial aspect of humerus
A: adducts and flexes arm @ glenohumeral joint
I: musculocutaneous nerve C5-C7
What is the OIAI for infraspinatus?
O: infraspinatus fossa of scapula
I: greater tubercle of humerus
A: laterally rotates, transversely ABducts and stabilizes arm and glenohumeral joint
I: scapular nerve C5-C6
What is the Rectus Abdominus OIAI?
O: pubic crest
I: xiphoid process, costal cartilages of 5th and 7th ribs
A: Flexes trunk, compresses & provides structural support to adjacent ab. structures. Internal intercostal muscles
I: adjacent anterior rami of thoracic nerves
Internal intercostal muscles OIAI?
O: inferior borders of 1st to 11th ribs & their adjacent costal cartilages
I: superior borders of ribs and costal cartilages immediately below origin sites
A: depresses ribs at their costovertebral joints; provide structural support to intercostal spaces
I: adjacent anterior rami of thoracic nerves
