BIOL212 - Exam #3: Short Answer

What are the structural differences between Arteries and Veins?

Arteries:

Valves - Absent

Elastic Membrane - Present

Size of Lumen - Smaller Diameter

Thickness of Tunica Media - Thick

Appearance of Tunica Media - Rippled with Elastic

Components of Tunica Media - Collagen and Elastic Tissue

Veins:

Valves - Present

Elastic Membrane - Absent

Size of Lumen - Larger Diameter

Thickness of Tunica Media - Thin

Appearance of Tunica Media - Smooth, No Elastic

Components of Tunica Media - Collagen, Elastic Tissue, Smooth Muscle

What are the structural differences between Male and Female Pelvis?

Male:

Shape of Obturator Foramen - Oval

Degree of Pubic Angle - Less than or euqal to (<=) 90

Depth of False Pelvis - Deep

Shape of Pelvic Brim - Heart

Female:

Shape of Obturator Foramen - Triangle

Degree of Pubic Angle - Greater than (>) 100

Depth of False Pelvis - Shallow

Shape of Pelvic Brim - Round

Describe a Hip Dislocation Injury

Specific Diarthrosis Joint - Triaxial (Multiaxial)

Specific Synovial Joint - Ball-and-Socket

What occurs with injury specific with bones and landmarks of the joint?

Head of femur pushes posterior away from acetabulum of coxal bone.

Ligaments/Structures involved -

1. Ligamentum Teres

2. Posterior Capsule

3. Neck of Femur

Describe Nursemaids Elbow Injury

Specific Diarthrosis Joint - Uniaxial

Specific Synovial Joint - Pivot and Hinge

What occurs with injury specific with bones and landmarks of the joint?

Radial head pulls away from the capitulum (of humerus and radial notch of ulna)

Ligaments/Structures involved -

1. Annular Ligament