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Y Anatomy, Histo, Embryo III > Midterm III: Misc. Dorsal Regions (Ben) > Flashcards

Midterm III: Misc. Dorsal Regions (Ben) Flashcards

1
Q

What are the borders of the nuchal region?

A
  • Superior: line btwn occipital protuberance and mastoid process
  • Inferior: vertebra prominens (C7)
  • Lateral: lines from mastoid process down to C7 level
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2
Q

What are the borders of the scapular region?

A
  • Superior: acromion to Th1 spinous process
  • Inferior: inferior scapular angle to posterior axillary fold
  • Medial: midline of trunk
  • Lateral: oblique line, acromion to inferior boundary
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3
Q

what are the borders of the posterior brachial region?

A
  • Superior/Proximal: Posterior Axillary Fold
  • Inferior/Distal: Above Olecranon
  • Medial: Medial Bicipital Groove
  • Lateral: Lateral Bicipital Groove
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4
Q

What are the borders of the posterior cubital region?

A
  • Superior/Inferior: above/below olecranon
  • Medial/Lateral: medial/lateral epicondyles
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5
Q

What are the borders of the posterior antebrachial region?

A
  • Proximal: Below Olecranon
  • Distal: Head of Ulna
  • Lateral: Lateral Epicondyle to Styloid Proc. of Radius
  • Medial: Medial Epicondyle to Styloid Proc. of Ulna
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6
Q

What are the borders of the dorsum of the hand?

A
  • Proximal: Basis of Metacarpals
  • Distal: Heads of Metacarpals
  • Ulnar/Radial: Margins of Hand
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7
Q

What are the borders of the gluteal region?

A
  • Superior: Iliac Crest
  • Inferior: Gluteal Groove
  • Medial: Lateral Sacral Crest
  • Lateral: Anterior Superior Iliac Spine
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8
Q

What are the boundaries of the posterior femoral region?

A
  • Superior: Gluteal Groove
  • Inferior: Above Popliteal Fossa
  • Med/Lat: Lateral/Medial Edges of Thigh
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9
Q

What are the boundaries of the posterior genicular region?

A
  • Superior/Inferior: Above/Below Mid-Popliteal Groove
  • Medial: Medial Epicondyle
  • Lateral: Capitulum of Fibula
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10
Q

What are the boundaries of the posterior crural region?

A
  • Superior: Below Popliteal Fold
  • Inferior: Line between malleoli
  • Med/Lat: Lines through malleoli
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11
Q

What are the borders of the lateral malleolar region?

A
  • Superior: Just Above Lateral Malleolus
  • Inferior: Lateral Edge, Sole of Foot
  • Anterior: Anterior Border of Fibula to 5th Metatarsal Tuberosity
  • Posterior: Midline of Leg
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12
Q

What are the borders of the sole of the foot?

A
  • Anterior: Skin Folds at Base of Toes
  • Post/Med/Lat: Edges of Sole and Heel
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13
Q

What are the borders of the lumbar region?

A
  • Superior: Between Inf. Scapular Angle + Posterior Axillary Fold
  • Inferior: Iliac Crest
  • Medial: Midline of Trunk
  • Lateral: Perpendicular Midaxillary Lines
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14
Q

What is the important triangle in the lumbar region?

Its borders?

Its contents/significance?

A

Petit’s Lumbar Triangle

Borders:

  • Lat. Dorsi
  • Ext. Abd. Oblique
  • Iliac Crest
  • Floor: Int. Abd. Oblique

Contents:

  • Lumbar Artery (from abd. aorta)
  • site of lumbar hernia

*

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15
Q

What important fascia is found in the lumbar region?

A

thoracodorsal fascia

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16
Q

What are the 3 layers of superficial nuchal muscles from superficial to deep?

W/ innervation.

A
  1. Trapezius - thoracodorsal n.
  2. Splenius Capitis - post. rami, cervical nerves
  3. Semispinalis Capitis - greater occipital n.
17
Q

What innervates the deep nuchal muscles?

A

suboccipital n.

18
Q

What is found in the suboccipital triangle?

A
  • vertebral artery
  • suboccipital n.
19
Q

What innervates the levator scapulae and rhomboids?

Where does this nerve arise from?

A

Dorsal Scapular Nerve

  • from superior trunk of brachial plexus (C5/6)
20
Q

What innervates the teres major?

From where does this nerve arise?

A

Inferior Subscapular N.

  • from posterior cord of brachial plexus
21
Q

What are the contents of the medial triangular space?

A

Circumflex Scapular Artery

22
Q

What are the contents of the quadrangular space?

A
  • Posterior Circumflex Humeral A.
  • Axillary N.
23
Q

What are the contents of the lateral triangular space?

A
  • radial nerve
  • deep brachial artery
24
Q

What innervates the skin of the posterior brachial region?

What is it a branch of?

A

posterior cutaneous brachial nerve

  • branch of radial nerve
25
What nerve innervates the skin of the _posterior antebrachial region_? What is it a branch of?
**posterior antebrachial cutaneous nerve** **-** branch of _radial nerve_
26
What two large superficial veins run along the radial and ulnar sides of the arm?
radial - **cephalic vein** ulnar - **basilic vein**
27
What innervates all the extensor muscles (specific branch)? Through what space does it pass?
**Deep Branch Radial Nerve** - passes through _supinator canal_
28
What are the contents of the 6 compartments of the extensor retinaculum, starting radially?
1. **Abd. Poll. Longus + Ext. Poll. Brevis** 2. **Ext. Carpi Radialis L + B** 3. **Ext. Poll. Longus** 4. **Ext. Digitorum + Ext. Indicis** 5. **Ext. Digiti Minimi** 6. **Ext. Carpi Ulnaris**
29
What is the other name for the anatomical snuffbox? Its borders? Contents?
**Foveola Radialis** * Radial: **Abd. Poll. Longus + Ext. Poll. Brevis** * Ulnar: **Ext. Poll. Longus** - contains _radial artery_ - _superficial branch_ _radial nerve_ passes above it
30
What are the 8 important contents of the infrapiriform hiatus?
1. **Sciatic N.** 2. **Internal Pudendal A.** 3. **Internal Pudendal V.** 4. **Pudendal N.** 5. **Inferior Gluteal A.** 6. **Inferior Gluteal V.** 7. **Inferior Gluteal N.** 8. **Posterior Femoral Cutaneous N.**
31
How are the 2 heads of the _biceps femoris_ innervated?
short head: **common peroneal n.** long head: **tibial n.**
32
What arteries supply the flexors of the _femoral region_?
**Perforating Branches**, **Deep Femoral Artery** (coming from femoral artery)
33
What two structures make up the _crural chiasma_? Which goes over which?
Tendons of... **Flexor Digitorum Longus** **Tibialis Posterior** - FDL crosses _over_ TP and ends up _posterior_ to it (to create the Tom, Dick, Harry order of tibialis, digitorum, hallucis)
34
What are the cutaneous nerves of the _gluteal region_?
**Cluneal Nerves**
35
What are the layers of the _plantar region_ with their muscles? superficial to deep
1. **Plantar Aponeurosis** 2. Second Layer: * **Flexor Digitorum Brevis** * **Abductor Hallucis** * **Abductor Digiti Minimi** 3. Third Layer: * **Flexor Digitorum Longus Tendons** * **Quadratus Plantae** * **Lumbricals** (on FDL tendons) 4. Fourth Layer: * **Adductor Hallucis** (oblique + transverse heads) * **Fl. Hall. Brevis + Fl. Dig. Min. Brevis** 5. Fifth Layer: **Interossei + Per. Longus Tendon**

Y Anatomy, Histo, Embryo III (26 decks)

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