Bones A&P1

Frontal Bone

A bone in the skull that forms the forehead and the area slightly above the eye sockets.

Coronal or Frontal Suture

The fibrous joint that connects the frontal bone to the parietal bones of the skull. It runs across the top of the head from ear to ear.

Nasal Bone

Two small, oblong bones located side-by-side at the upper and middle part of the face that join to form the bridge of the nose

Ethmoid Bone

A lightweight, spongy, unpaired bone in the skull that separates the nasal cavity from the brain and helps form the orbits (eye sockets)

Sphenoid Bone

A single, butterfly-shaped bone located at the center of the skull base, right behind the nose and eye sockets

Squamous Suture

a fibrous joint on the side of the skull that connects the temporal bone and the parietal bone

Temporal Bone

a complex, paired cranial bone that forms the lower lateral sides and base of the skull

Zygomatic Bones

A pair of diamond-shaped facial bones that form the prominences of the cheeks

Maxillae

two fused bones that form the upper jaw, hard palate, and parts of the nose and eye sockets in humans and other vertebrates

Mandible

lower jawbone and the largest, strongest, and only movable bone in the human skull

Lacrimal Bone

The smallest and most fragile bone of the facial skeleton, roughly the size of a fingernail, located at the front part of the medial (inner) wall of each eye socket (orbit)

Zygomatic Process

A bony projection from the side of the skull that helps form the cheekbone structure and connect adjacent facial and cranial bones

Foramen Magnum

Large, oval-shaped opening at the base of the skull that connects the brain to the spinal cord

Occipital Bone

A saucer-shaped flat bone located at the back and base of the skull

External Auditory Meatus (external auditory canal)

an S-shaped tubular pathway running from the outer ear (auricle) to the tympanic membrane (eardrum)

Lambdoid Suture

A dense, fibrous joint located at the back of the skull that connects the two parietal bones to the occipital bone

Temporal Bone

A complex, paired cranial bone that forms the lower lateral sides and base of the skull

Parietal Bones

Flat, quadrilateral cranial bones that form the upper sides and roof (calvaria) of the human skull

Fontanel

A membrane-covered space on an infant's skull where the cranial bones have not yet fused together

Sagittal Suture

A dense, fibrous joint running down the middle of the top of the skull that connects the left and right parietal bones

Clavicle

A slender, S-shaped long bone about 15 centimeters (6 inches) long that connects the upper arm to the sternum (breastbone)

Cervical Vertebrae

Seven stacked bones in the neck, labeled C1 through C7

Sternum

A long, flat bone located at the center of the chest

Ribs

The long, curved bones that wrap around your chest from your spine to form a protective cage for your heart and lungs

Scapula

A flat, triangular bone located on the back of the upper chest that connects the upper arm to the collarbone

Mastoid Process

Rounded, cone-shaped bony bump located directly behind and below your earlobe

Xiphoid Process

The small, pointed lowest part of your sternum, or breastbone, located in the center of your chest, right above your upper abdomen

Lumbar Vertebrae

Five large, block-like bones in your lower back labeled L1 through L5

Humerus

Long bone located in the upper arm between the shoulder and the elbow

Ulna

The longer and larger inner bone of the human forearm

Radius

One of the two long bones in the human forearm, located on the lateral (thumb) side.

Coccyx

The small, triangular bone located at the very base of the spinal column

Femur

Thigh bone, is the longest, heaviest, and strongest bone in the human body

Patella

Commonly known as the kneecap

Fibula

The slender lower leg bone located on the outer (lateral) side of the larger shinbone, or tibia

Tibia

The large shinbone located in the front part of your lower leg

Medial Malleolus

The bony bump on the inner side of your ankle

Metacarpals

The five long bones that form the structural framework of the palm in the human hand

Phalanges

The digital bones located in the fingers and the toes of humans and most vertebrates

Iliac Crest

The curved, prominent top ridge of the ilium

Pubic Bone

The lower, forward-facing bone located at the front of your pelvis

Ischium

The lower and back part of the hip bone that supports your weight when you sit

Sacrum

The large, triangular bone at the base of the spine that connects the vertebral column to the pelvis

Pelvis

A basin-shaped ring of bones located at the base of the spine that connects the upper body trunk to the lower limbs

Ilium

The largest and uppermost bone of the pelvis

Triangular (triquetrum)

The pyramid-shaped wrist bone located on the pinky-finger side of your hand

Lunate

The small, crescent-shaped bone in the center of the wrist's upper (proximal) row.

Scaphoid

The small, boat-shaped bone located on the thumb side of the wrist that helps link the hand to the forearm and stabilize the joint

Trapezium

The small, four-sided bone in the wrist located at the base of the thumb

Trapezoid

The trapezoid bone is the smallest carpal (wrist) bone in the distal row, sitting in the middle of the palm side of the hand

Capitate

The largest of the eight carpal bones located in the center of the human wrist

Hamate

The small, wedge-shaped carpal bone located in the wrist on the side of the little finger

Carpals

The group of eight small, irregularly shaped bones that form the wrist and connect the forearm to the hand

Pisiform

The small, pea-shaped sesamoid bone located in the wrist on the side of the palm near the pinky finger

Navicular

The small, boat-shaped tarsal bone located on the medial (inner) side of the midfoot that helps maintain the foot's arch and stability

Talus

The major ankle bone that connects the lower leg to the foot and transmits body weight

Calcaneus

The large, asymmetric bone that forms the heel of the human foot.

Cuboid

The small, cube-shaped tarsal bone located on the outer side of the midfoot

First (medial cuneiform)

The largest of the three cuneiform bones located on the inner, medial side of the midfoot

Second (intermediate cuneiform)

The smallest wedge-shaped bone in the middle of the midfoot

Third (lateral cuneiform)

The wedge-shaped bone in the midfoot that helps support the transverse arch of the foot

Tarsals

The group of seven short, irregularly shaped bones that form the ankle and hindfoot/midfoot region in the human body

Metatarsals

The group of five long bones located in the forefoot between the tarsal bones of the midfoot and the phalanges (toe bones)

Vomer

The thin, unpaired facial bone that forms the lower and back part of your nasal septum