Human Skeleton Anatomy: Key Bones, Sections, and Numbers

Which part of the skeleton forms the central axis of the body?

A. Appendicular skeleton

B. Axial skeleton

C. Pelvic girdle

D. Pectoral girdle

B. Axial skeleton

Memory Tick: AXIS = CENTER Think: The axle of a car runs through the center. Axial Skeleton = Skull + Spine + Rib Cage

How many bones are found in the adult human skeleton?

A. 186

B. 196

C. 206

D. 216

C. 206

Memory Tick: "2-0-6, that's the bone count mix!"

TEAS favorite fact: Adult = 206 bones, Infant ≈ 270 bones

Which bone protects the brain?

A. Mandible

B. Maxilla

C. Cranium

D. Zygomatic

C. Cranium

Memory Tick: CRANIUM = CRANIal cavity = Brain protection

Think: "Cranium = Crown of the head."

The vertebral column contains how many cervical vertebrae?

A. 5

B. 7

C. 12

D. 26

B. 7

Memory Tick: Remember: Breakfast at 7, Lunch at 12, Dinner at 5

Cervical = 7, Thoracic = 12, Lumbar = 5

Which structure is part of the thoracic cage?

A. Femur

B. Radius

C. Sternum

D. Scapula

C. Sternum

Memory Tick: STERNUM = CENTER CHEST BONE

Thoracic Cage: Sternum —> Ribs —> Thoracic vertebrae

Which bone is commonly called the collarbone?

A. Scapula

B. Clavicle

C. Humerus

D. Radius

B. Clavicle

Memory Tick: CLAVICLE = Collarbone, "ClaVICLE sits on top like a V-shaped collar."

Which bone is located in the upper arm?

A. Radius

B. Ulna

C. Humerus

D. Femur

C. Humerus

Memory Tick

Funny = Humorous = HUMERUS

Humorous bone = upper arm bone.

Which two bones make up the forearm?

A. Tibia and Fibula

B. Radius and Ulna

C. Femur and Patella

D. Scapula and Clavicle

B. Radius and Ulna

Memory Tick: R-U = Radius & Ulna = Run Under, Forearm = Radius + Ulna

Which bone is known as the kneecap?

A. Tibia

B. Fibula

C. Femur

D. Patella

D. Patella

Memory Tick: PATELLA = PAT on your knee

Which bone is the longest bone in the body?

A. Humerus

B. Femur

C. Tibia

D. Radius

B. Femur

Memory Tick

FEMUR = FAMOUS for being the longest

The pelvic girdle is formed by which fused bones?

A. Frontal, temporal, occipital

B. Ilium, ischium, pubis

C. Radius, ulna, humerus

D. Tibia, fibula, patella

B. Ilium, Ischium, Pubis

Memory Tick: I-I-P

"I Imagine Pizza”, Ilium —> Ischium —> Pubis

How many pairs of ribs does a normal adult have?

A. 10 pairs

B. 11 pairs

C. 12 pairs

D. 13 pairs

C. 12 pairs

Memory Tick: 12 ribs = 24 total ribs

TEAS loves asking: "12 pairs" NOT "12 ribs"

Which bone is part of the facial bones?

A. Ethmoid

B. Frontal

C. Maxilla

D. Occipital

Maxilla

Memory Tick: MAXILLA = Upper jaw, MANDIBLE = Lower jaw

Remember: MAX = Up MAN = Down

Which skeleton contains the limbs?

A. Axial skeleton

B. Appendicular skeleton

C. Vertebral skeleton

D. Thoracic skeleton

B. Appendicular skeleton

Memory Tick: APPENDAGES = Arms and Legs, Appendicular Skeleton = Limbs

Which statement best describes the function of the skeletal system?

A. Produces hormones only

B. Pumps blood through the body

C. Provides support, protection, and movement

D. Digests food

C. Provides support, protection, and movement

Memory Tick: Think of the skeleton's 3 P's

✔️ Protection (brain, heart, lungs) ✔️ Posture/Support ✔️ Performance (movement)

Ultimate TEAS Memory Trick

"7-12-5 keeps the spine alive."

7 Cervical, 12 Thoracic, 5 Lumbar

TEAS High-Yield Bone Numbers 🚨

Structure Number Total

Bones = 206

Axial Skeleton = 80

Appendicular Skeleton = 126

Cervical Vertebrae = 7

Thoracic Vertebrae = 12

Lumbar Vertebrae = 5

Ribs = 12 pairs

Carpals = 8 per wrist

Tarsals = 7 per ankle

Phalanges in Hand = 14

Phalanges in Foot = 14