Overview of Human Anatomy

The study of the structures of the human body.

The external covering of the body (skin, hair, nails, glands).

Supports and protects the body, composed of bones and cartilage.

Divides the body into left and right portions.

Divides the body into front and back portions.

Divides the body into top and bottom portions.

The study of structures that are too small to see with the naked eye.

Used to describe positions and relationships within the body.

The bony projection at the posterior end of the ulna, forming the point of the elbow.

Curved indentation on the ulna that articulates with the trochlea of the humerus, forming the elbow joint.

A small indentation on the ulna that articulates with the head of the radius.

A rough projection just below the coronoid process of the ulna, serving as the attachment point for the biceps brachii muscle.

From lateral to medial, the 4 bones are: Scaphoid, Lunate, Triquetrum, Pisiform.

The part of the skeleton that includes the limbs and their attachments to the axial skeleton.

S-shaped bone connecting the shoulder blade (scapula) to the breastbone (sternum), providing support and mobility for the arm.

Flat, triangular bone on the back of the rib cage, connecting to the humerus (upper arm bone), allowing for a wide range of shoulder movements.

Longest and largest bone of the upper limb, connecting the shoulder to the elbow, enabling flexion, extension, and rotation.

Shallow socket on the scapula that articulates with the humerus, forming the shoulder joint.

Longer bone on the medial side of the forearm, working with the radius for hand movements like bending and straightening.

Shorter bone on the lateral side of the forearm, works with the ulna to allow rotation and movement of the hand.

Spool-shaped surface on the humerus (elbow bone) that articulates with the ulna, allowing for bending and straightening of the forearm.

The trochlear notch of the ulna articulates with the trochlea of the humerus, forming the elbow joint, which allows for bending and straightening of the arm.

The biceps brachii muscle attaches to the ulnar tuberosity, a projection located just below the coronoid process on the ulna.

The styloid process of the ulna provides attachment for the ulnar collateral ligament, which helps to stabilize the wrist joint.

The radius articulates with the capitulum of the humerus at its proximal end and the radial notch of the ulna.

The carpal bones in the proximal row, from lateral to medial, are the scaphoid, lunate, triquetrum, and pisiform.

The clavicle (collarbone) provides stability and allows the scapula (shoulder blade) to move freely across the chest, enabling arm movement.

The scapula is a flat, triangular bone located on the back of the rib cage, between the 2nd and 7th ribs.

The scapula contains the glenoid cavity where the humerus (arm bone) connects, the acromion, and the coracoid process, which both provide muscle attachment points.

The proximal end (top) of the humerus has a rounded head that fits into the glenoid cavity of the scapula, forming the shoulder joint. It also features the greater and lesser tubercles for muscle attachment.

The distal end (bottom) of the humerus has the capitulum, which articulates with the radius (forearm bone), and the trochlea, which articulates with the ulna (forearm bone), forming the elbow joint.

The ulna is the longer bone on the medial side (little finger side) of the forearm. It works with the radius to allow bending, straightening, and some rotation of the forearm.

The radius is the shorter bone on the lateral side (thumb side) of the forearm. It works with the ulna to allow bending, straightening, and rotation of the forearm.

The appendicular skeleton connects the limbs to the axial skeleton, providing attachment points for muscles and enabling limb mobility.

The clavicle, or collarbone, is an S-shaped bone.

The clavicle connects to the sternum (breastbone) on one end and the scapula (shoulder blade) on the other.

The scapula, or shoulder blade, is a flat, triangular bone.

The scapula is located on the posterior (back) side of the rib cage.

The humerus is the long bone in your upper arm.

The deltoid tuberosity is a roughened area on the humerus for the deltoid muscle attachment.

The radial groove is a channel on the humerus that houses the radial nerve.

The ulna is the bone on the medial (pinky finger) side of your forearm.

The proximal end of the ulna contains the olecranon, coronoid process, trochlear notch, and radial notch.

The distal end of the ulna contains the styloid process and the ulnar head.

The radius is the bone on the lateral (thumb) side of your forearm.

The proximal end of the radius contains the radial head, neck, and radial tuberosity.

The distal end of the radius contains the styloid process, articular surface for carpals, and the radial head.

There are 8 carpal bones in the wrist, arranged in two rows.

The proximal row of carpal bones consists of the scaphoid, lunate, triquetrum, and pisiform.

The distal row of carpal bones consists of the trapezium, trapezoid, capitate, and hamate.

The metacarpals are the five long bones in your hand, forming the palm.

The phalanges are the bones in your fingers, with each finger containing 3 phalanges except the thumb, which has 2.

The glenohumeral joint is formed by the articulation of the humerus (head) with the glenoid cavity of the scapula.

The elbow joint is formed by the articulation of the trochlea of the humerus with the trochlear notch of the ulna and the capitulum of the humerus with the radial head of the radius.

The biceps brachii muscle attaches to the radial tuberosity of the radius.

The ulnar styloid process provides attachment for the ulnar collateral ligament, which helps to stabilize the wrist joint.

The radius articulates with the capitulum of the humerus proximally and the radial notch of the ulna, forming the elbow joint.

There are 8 carpal bones in the wrist, arranged in two rows, allowing for a wide range of wrist movements.

The skull is made up of 22 bones, a combination of flat bones and sutures, which are immovable joints.

The cranium, or braincase, protects the brain and houses nerves.

The frontal bone forms the forehead and part of the eye sockets.

The temporal bones are below the parietal bones, forming the sides and base of the skull. They also house your ears.

The occipital bone at the back of the skull connects to the first cervical vertebra (atlas).

The sphenoid bone, a complex bone, forms part of the skull base and connects to many other bones.

The facial skeleton shapes the face and supports the openings for breathing and eating.

The maxillae form the upper jaw and the hard palate (roof of your mouth).

The skull provides structural support for the face and organs like the nose and eyes.

The skull serves as an anchor for muscles that control facial expressions, chewing, and head movement.

The skull shapes important cavities like the nasal cavity (nose), orbit (eye socket), and oral cavity (mouth).

Fontanelles are soft spots on an infant's skull that allow for brain growth and flexibility during birth.

This process replaces cartilage with bone during skull development in fetuses.