ACING BIOS 255 EXAM 3 WITH AN A+ QUESTIONS AND
ANSWERS PLAYBOOK
Epithelial Tissue Layers
Consist of simple, stratified, and pseudostratified layers.
Basement Membrane
Separates epithelium, provides structural support.
Major Limb Bones
Humerus, radius, ulna, femur, tibia, fibula.
Pectoral Girdle Bones
Scapula, clavicle; Pelvic Girdle Bones: Ilium, ischium, pubis.
Joint Types
Hinge (elbow, knee), ball-and-socket (shoulder, hip), pivot (neck).
Melanin vs. Keratin
Melanin: skin color, UV protection; Keratin: structural protein for skin, hair, nails.
Endochondral Ossification
Cartilage to bone formation in long bones.
Long Bone Characteristics
Diaphysis, epiphyses, medullary cavity.
Compact vs. Spongy Bone
Compact: dense, solid; Spongy: contains trabeculae.
Foramen vs. Fossa
Foramen: hole for vessels/nerves; Fossa: shallow bone depression.
Meatus
Tube-like canal in bone.
Major Muscle Groups
Quadriceps, hamstrings, biceps, triceps.
Graded vs. Action Potential
Graded: small membrane changes; Action: rapid, large changes.
Primary Cortex
Primary sensory/motor cortex in parietal/frontal lobes.
ANSWERS PLAYBOOK
Epithelial Tissue Layers
Consist of simple, stratified, and pseudostratified layers.
Basement Membrane
Separates epithelium, provides structural support.
Major Limb Bones
Humerus, radius, ulna, femur, tibia, fibula.
Pectoral Girdle Bones
Scapula, clavicle; Pelvic Girdle Bones: Ilium, ischium, pubis.
Joint Types
Hinge (elbow, knee), ball-and-socket (shoulder, hip), pivot (neck).
Melanin vs. Keratin
Melanin: skin color, UV protection; Keratin: structural protein for skin, hair, nails.
Endochondral Ossification
Cartilage to bone formation in long bones.
Long Bone Characteristics
Diaphysis, epiphyses, medullary cavity.
Compact vs. Spongy Bone
Compact: dense, solid; Spongy: contains trabeculae.
Foramen vs. Fossa
Foramen: hole for vessels/nerves; Fossa: shallow bone depression.
Meatus
Tube-like canal in bone.
Major Muscle Groups
Quadriceps, hamstrings, biceps, triceps.
Graded vs. Action Potential
Graded: small membrane changes; Action: rapid, large changes.
Primary Cortex
Primary sensory/motor cortex in parietal/frontal lobes.
