Gross Anatomy Limbs Superficial Arm & Forearm
Certain bulges on surface anatomy are caused by muscle masses
Big bulge, most proximally = Deltoid M.
On anterior surface of arm = Biceps Brachii M.
On lateral side of forearm = Flexor Muscles
Arm is surro
Gross Anatomy Limbs Scapular Region & Shoulder
- Upper limb is divided into sections:
o Shoulder region
INFERIOR to shoulder
SUPERIOR to elbow
o Elbow (posterior)
o Cubital reg
Gross Anatomy Limbs Posterior Region of Forearm/Dorsum of Hand
SUPERFICIAL LAYER OF MUSCLES
EXTENSORS of the digits
Innervation to ALL superficial muscles = Radial N. and branches
Extensor Carpi Radialis Longus M.
o Proximal attachment = Lateral Sup
Gross Anatomy Limbs Palm
- Palmar side of hand has several flexion creases, caused by areas of skin be3ing tightly bound to underlying tissues.
Can be seen in digits (@ joints), in palm (life line), and @ wrist
- Palm contains 2 masses of skin formed by u
Gross Anatomy Limbs Joints of Upper Limb
- Joint = area of union between 2 or more bones
- May be classified according to structure that separated bones @ area of joint.
o Fibrous (Syndesmosis) Joints
Have tiny amount of fibrous CT
Ex. Skull bones along
Gross Anatomy Limbs Anterior Region of Forearm
Humerus of upper arm
o Articulates w/Radius and Ulna of forearm at the elbow to form a hinge joint
o Important parts of humerus:
o Shorter, laterally placed bone of forearm
o Proximal end
Clinical for Head
1. Bat to temporal fossa, unconscious, headache, blurred vision. Dilated left pupil.
-dilation of pupil and confusion indicates extradural hematoma
-middle meningeal artery likely tom
-lies deep to pterion and is likely tom in fracture
Gross Anatomy Clinical Vignettes (Exam 2)
During appendectomy, it is important to preserve Iliohypogastric N.
o Iliohypogastric supplies lower part of external abdominal oblique, internal abdominal
oblique, transverse abdominus, and skin superio
Case Studies (clinical vignettes) for Thorax
Problem: man is stabbed in the chest in the third intercostals space just lateral to the
sternum- the veins of his face and neck were engorged
Complications: pericardial sac and right ventricle are pun