Anatomical Spaces

What is the muscle that makes up the Superior Lateral Border of the Suboccipital Triangle? (provide OIA, INE)

Oblique Capitis Superior

O= TP C1

I= lower space between the superior and inferior nuchal lines

INE= suboccipital nerve (root C1)

What is the muscle that makes up the Superior Medial Border of the Suboccipital Triangle? (provide OIA, INE)

Rectus Capitis Posterior Major

O= SP C2

I= lateral aspect of the inferior nuchal line

INE= suboccipital nerve (root C1)

What is the muscle that makes up the Inferior Lateral Border of the Suboccipital Triangle? (provide OIA, INE)

Oblique Capitis Inferior

O= SP C2

I= TP C1

INE= suboccipital nerve (root C1)

What makes up the floor of the Suboccipital Triangle?

posterior arch of C1 and the posterior atlantoccipital membrane

What makes up the roof of the Suboccipital Triangle?

Semispinalis Capitis muscle

O= TP and articular processes of C4-T7

I= upper space between the inferior nad superior nuchal lines on the occiput

What are all the contents held within the Suboccipital Triangle?

vetebral artery, suboccipital nerve (root C1, Motor), greater occipital n (root C2, Sensory), and the occipital n (root C3, mixed)

What makes up the superior border of the quadrangular space? Provide OIAN

Teres minor

O= middle lateral border of scapula

I= inferior facet of greater tubercle of humerus

A= minor ER

INE= axillary nerve (roots C5-6)

What makes up the lateral border of the quadrangular space?

the humerus bone

What makes up the inferior border of the quadrangular space? Provide OIAN

Teres Major

O= posterior inferior angle of scapula

I= medial crest of intertubercular groove

A= ADD and IR

INE= lower subscapular nerve (roots C5-6)

What makes up the medial border of the quadrangular space?

Long head of triceps brachii

O= infraglenoid tubercle

I= proximal olecronon of ulna and forearm fascia

A= elbow EXT and steadies head of humerus when arm is ABD

INE= radial nerve (C6-8)

What are the contents of the quadrangular space?

the axillary nerve and the posterior circumflex humeral artery

these contents are passing through the space

What is the superior border of teh triangular space? Provide OIAN

Teres Minor

O= middle lateral border of scapula

I= inferior facet of greater tubercle

A= minor ER

INE= axillary nerve (roots C5-6)

What makes up the inferior border of the tirangular space? Provide OIAN

Teres Major

O= posterior inferior angle of scapula

I= medial crest of intertubercular sulcus

A= ADD and IR

INE= lower subscapular nerve (C5-6)

What makes up the lateral border of the triangular space?

Long head of triceps brachii

O= infraglenoid tubercle of scapual

I= proximal olecronon and forearm fascia

A= elbow EXT and steadies the head of the humerus when the arm is ABD

INE= radial nerve (C6-8)

What is the superior border of the tirangular interval space?

Teres Major

O= posterior inferior angle of scapula

I= medial crest of intertubercular groove

A= ADD and IR

INE= lower subscapular nerve (roots C5-6)

What makes up the lateral border of the triangular interval space?

lateral head of triceps

O= posterior humerus, superior to the radial groove

I= proximal olecronon and forearm fascia

A= elbow EXT

INE= radial nerve (C6-C8)

What makes up the medial border of the triangular interval space?

long head of. triceps

O= infraglenoid tubercle of scapula

I= proximal olecronon and forearm fascia

A= elbow EXT and steadies the head of the humerus when arm is ABD

INE= radial nerve (C6-8)

What are the contents of the triangular interval space?

radial nerve and deep brachial artery

What is the superior border of the cubital fossa?

the imaginary line between ME and LE

What is the lateral border of the cubital fossa?

brachioradialis

What is the medial border of the cubital fossa?

pronator teres

What makes up the floor of the cubital fossa?

brachialis and supinator

What makes up the roof of the cubital fossa?

• bicipital aponeurosis

• deep fascia

• subcutaneous tissue

• overlying skin

What are the contents of the cubital fossa? Put in order from most medial to lateral

• median nerve

• brachial artery

• deep accompyaning veins

• biceps tendon

• radial nerve

What makes up the proximal border of the carpal tunnel space?

scaphoid to pisiform

What makes up the distal border of the carpal tunnel space?

trapezium to hook of hamate

What makes up the floor of the carpal tunnel?

capitate

What makes up the roof of the carpal tunnel?

flexor retinaculum (transverse carpal ligament)

What are all the contents in the carpal tunnel?

• the four tendons of FDP

• the four tendons of FDS

• the tendon of FPL

• median nerve

What makes up the medial (proximal) border of the Guyon's canal?

pisiform

What makes up the lateral (distal) border of the Guyon's canal?

hook of hamate

What makes up the floor of Guyon's canal?

flexor retinaculum (transverse carpal lig) and pisohamate lig

What makes up the roof of the Guyon's canal?

palmar carpal ligament

What are the contents in the Guyon's canal?

• ulnar m. (more ant/med)

  • splits into its deep (lateral) and superficial (medial) palmar branches within the guoyn;s canal

• ulnar a. (more post/lat)

What makes up the roof of the snuff box?

-subcutaneous tissue

fascia

superficial radial n. that is embedded

What makes up the lateral border of the snuff box?

tendons of APL and EPB

What is the medial border of the snuff box?

tendon of EPL

What is the floor of the snuff box?

• scaphoid

• trapezium

• part of 1st MC

• radial styloid process

What is the content within the snuff box?

radial a.

• just lateral to the FCR tendon