Anatomy - Bones of the Human Body
Master the skeletal anatomy of the human body with this comprehensive flashcard deck covering all major bones, their locations, and clinical significance. The adult human body has 206 named bones — this deck organizes them by region to make memorization logical and efficient. Topics include the bones of the skull, vertebral column, thoracic cage, shoulder girdle, upper limb, pelvic girdle, and lower limb — along with key bony landmarks relevant to nursing procedures, physical assessment, and clinical practice. Essential for anatomy courses, nursing school, NCLEX preparation, and medical assistant certification exams.
All Cards in This Deck
Question
How many bones does the adult human body have?
Answer
206 bones. Babies are born with about 270–300 bones; many fuse together during childhood and adolescence.
Question
What are the 4 main types of bones?
Answer
Long bones (femur, humerus), short bones (carpals, tarsals), flat bones (skull, scapula), irregular bones (vertebrae, pelvis).
Question
What is the largest bone in the body?
Answer
The femur (thigh bone) — the longest, heaviest, and strongest bone in the human body.
Question
What is the smallest bone in the body?
Answer
The stapes (stirrup) in the middle ear — approximately 3mm long. It transmits sound vibrations to the inner ear.
Question
What are the bones of the skull called collectively?
Answer
The cranium. It consists of 8 cranial bones (frontal, parietal x2, temporal x2, occipital, sphenoid, ethmoid) and 14 facial bones.
Question
What is the mandible?
Answer
The lower jawbone — the only movable bone of the skull. It holds the lower teeth and is essential for chewing and speaking.
Question
What is the maxilla?
Answer
The upper jaw bone that forms part of the hard palate and holds the upper teeth. There are two maxillae fused at the midline.
Question
What is the occipital bone?
Answer
A flat bone forming the back and base of the skull. It contains the foramen magnum — the opening through which the brainstem connects to the spinal cord.
Question
What is the vertebral column and how many vertebrae does it contain?
Answer
The spine — consisting of 33 vertebrae total: 7 cervical, 12 thoracic, 5 lumbar, 5 sacral (fused into sacrum), 4 coccygeal (fused into coccyx).
Question
What are the cervical vertebrae and what is special about C1 and C2?
Answer
The 7 vertebrae of the neck. C1 (Atlas) supports the skull. C2 (Axis) has the odontoid process (dens), allowing rotational head movement.
Question
What is the sacrum?
Answer
A triangular bone formed by 5 fused sacral vertebrae at the base of the spine. It connects the vertebral column to the pelvis (via sacroiliac joints).
Question
What is the coccyx?
Answer
The tailbone — formed by 3–5 fused coccygeal vertebrae at the very bottom of the spine. It is a vestigial remnant of a tail.
Question
What bones make up the thoracic cage (rib cage)?
Answer
12 pairs of ribs, 12 thoracic vertebrae, and the sternum (breastbone). Protects the heart and lungs.
Question
What is the sternum and what are its 3 parts?
Answer
The breastbone — a flat bone in the center of the chest. Three parts: Manubrium (top), Body (middle), Xiphoid process (bottom).
Question
What is the clinical significance of the xiphoid process?
Answer
It is the landmark for correct hand placement during CPR compressions (hands placed above the xiphoid process to avoid injury).
Question
What are "true ribs," "false ribs," and "floating ribs"?
Answer
True ribs (1–7): Attach directly to sternum. False ribs (8–10): Attach indirectly via costal cartilage. Floating ribs (11–12): No anterior attachment at all.
Question
What bones make up the shoulder girdle (pectoral girdle)?
Answer
The clavicle (collarbone) and the scapula (shoulder blade) on each side.
Question
What is the clavicle and why is it clinically important?
Answer
The collarbone — connects the sternum to the scapula. It is the most commonly fractured bone in the body, often from falls on outstretched hands.
Question
What are the bones of the upper arm and forearm?
Answer
Upper arm: Humerus. Forearm: Radius (lateral/thumb side) and Ulna (medial/pinky side).
Question
What are the carpals?
Answer
The 8 small bones of the wrist: Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate. Mnemonic: She Looks Too Pretty, Try To Catch Her.
Question
What are the metacarpals and phalanges?
Answer
Metacarpals: 5 bones forming the palm of the hand. Phalanges: 14 finger bones (3 per finger, 2 in the thumb).
Question
What bones make up the pelvis?
Answer
The pelvis consists of two hip bones (each formed by the ilium, ischium, and pubis) plus the sacrum and coccyx.
Question
What is the iliac crest?
Answer
The upper rim of the ilium (hip bone) — a key landmark for intramuscular injections (ventrogluteal site) and bone marrow biopsy.
Question
What are the bones of the thigh and leg?
Answer
Thigh: Femur. Leg (below knee): Tibia (medial, weight-bearing) and Fibula (lateral, non-weight-bearing).
Question
What is the patella?
Answer
The kneecap — a sesamoid bone embedded in the quadriceps tendon. It protects the knee joint and improves the mechanical leverage of the quadriceps muscle.
Question
What is the tibia and why is it important clinically?
Answer
The shin bone — the main weight-bearing bone of the lower leg. The tibial tuberosity (front of shin) is the site for intraosseous (IO) needle insertion in emergencies.
Question
What is the fibula and its function?
Answer
The thin lateral bone of the lower leg. It does NOT bear significant weight but provides attachment for muscles and ligaments. Commonly fractured in ankle sprains.
Question
What are the tarsals?
Answer
The 7 bones of the ankle/heel: Calcaneus (heel bone), Talus, Navicular, Cuboid, and 3 Cuneiforms (medial, intermediate, lateral).
Question
What is the calcaneus?
Answer
The heel bone — the largest tarsal bone. It bears most of the body's weight when standing and is the site of Achilles tendon attachment.
Question
What is the anatomical difference between male and female pelvis?
Answer
The female pelvis is wider and shallower with a larger pelvic outlet to accommodate childbirth. The male pelvis is narrower, deeper, and more robust.