Body cavity, Cells & Integumentary Flashcards
what is Metabolism
refers to the sum of all chemical reactions in the body
refers to the breaking down of molecules
Catabolism
Anabolism
refers to the building up of molecules
refers to the dynamic equilibrium in which the internal environment remains constant
Homeostasis
What is the smallest unit of life
the cell
A tissue is
a cluster of similar cells performing a similar function
An organ is
consists of 2 or more different tissues grouped together to carry out a common function
A system is
an association of organs whose activities are coordinated to fulfill a common purpose
The 4 main tissue types are
Epithelial tissue
Connective tissue
Muscle tissue
Nerve tissue
difference between epithelial and connective tissue
Epithelial tissue is closely packed wheres as connective tissue is loosely packed in a non living matrix
what has a matrix rich in collagen fibers
Fibrous Tissue
what is A tendon
a cord of fibrous connective tissue which links muscle to bone
what is A ligament
a cord of fibrous connective tissue which links bone to bone
what is deep fascia
a sheet of fibrous connective which covers the skeletal muscles
what makes up the Integumentary system
Skin, hair ,
nails,
sweat glands
oil glands
Epidermis is composed of
epithelial tissue
The dermis is composed of
fibours connective tissue
Keratin is
the name of the tough water resistant protein which is found in the epidermis of the skin hair and nails
what is a wart
is a benign tumor of epidermal cells caused by a viral infection
Corns and calluses are
patches of the epidermis which have become thickened with extra keratin
