Tissues
This type of tissue covers body surfaces and lines cavities, playing roles in protection and absorption.
Epithelial
The largest organ of the human body and is part of the integumentary system.
Skin
This is the rigid organ system that supports the body, protects organs, and allows for movement.
Skeletal System
This division of the skeletal system includes the skull, vertebral column, and thoracic cage.
Axial Skeleton
Bones are classified into categories such as long, short, flat, and irregular based on this characteristic.
Shape
This tissue type is responsible for movement of the body through contractions.
Muscle
The outermost layer of the skin is made up of keratinized stratified squamous epithelium.
Epidermis
Hematopoiesis
This term refers to any projection or bump on a bone that serves as an attachment point for muscles or ligaments.
Process
This deeper skin layer contains blood vessels, nerves, and connective tissue and is a crucial part for wound healing.
Dermis
Epithelial tissues are classified based on thee two structural features: number of layers and this characteristic of the cells.
Cell Shape
This pigment helps protect skin cells from UV radiation and is produced by specialized cells.
Melanin
These bone cells break down bone matrix, playing a key role in bone remodeling.
Osteoclasts
This skull bone forms the forehead and the superior part of the eye sockets.
Frontal Bone
This type of fiber in connective tissue provides elasticity, allowing structures like the lungs and arteries to stretch and recoil.
Elastic
This key characteristic of epithelial tissue means it lacks blook vessels but can still receive nutrients by diffusion.
Avascular
These cells of the epidermis are responsible for producing keratin.
Keratinocytes
This process is responsible for forming most bones, replaces hyaline cartilage with bone tissue during development.
Endochondral Ossification
These vertebrae are located in the lower back and are characterized by their large size for weight bearing.
Lumbar
These ribs attach directly to the sternum via costal cartilage.
True Ribs
Because this type of connective tissue lacks a direct blood supply, injuries to it (such as in the knee) heal slowly.
Cartilage
This type of burn destroys both the epidermis an the dermis and often results in loss of sensation due to nerve damage.
Third-Degree
This law states that bones grow or remodel in response to the mechanical stresses placed on them.
Wolff's Law
This part of the appendicular skeleton includes the bones that anchor the upper limbs to the axial skeleton.
Pectoral (Shoulder) Girdle
This type of bone marking is a smooth, nearly flat articular surface that forms a joint with another bone.