Cells
What is the powerhouse of the cell?
Mitochondria
List the 4 types of tissues
Epithelial
Connective
Muscle
Nervous
What is the function of the Skeletal System?
- Support and protection
- Body movement
- Blood cell formation (hematopoiesis)
What are the types of Muscle?
- Skeletal
- Smooth
- Cardiac
What is the function of the nervous system
Coordinate the body's systems by receiving and sending infromation and maintaining homeostasis
Define Exocytosis and Endocytosis
Exocytosis: Secretion. Matirial that exits the cell
Endocytosys: Maritial that enters the cell
List 3 Muscle tissues. Which one is voluntary? Involuntary?
- skeletal (voluntary)
- Smooth (involuntary)
- Cardiac (involuntary)
Locate your Lumbar, cervical and thoracic vertebrae.
Cervical: Near the neck
thoracic: Middle
lumbar: lower back
Myosin = ___ filaments
Actin = ___ filaments
Thick
Thin
The Central Nervous System (CNS) consist of...
Brain and spinal cord
In which phase of mitosis do chromatids separate and move to opposite poles?
Anaphase
What is the difference between tendons and ligaments?
Tendon connects muscle to bone.
Ligaments connect bones to bones.
What is the Epiphysis?
The end of a long bone
Describe the sliding filament theory
What makes up a neuron?
Cell body
Dendrites
Axons
What is the diffusion of water across a semi-permiable membrane.
Osmosis
What is another word for bone tissue?
Osseous
Scapula, Clavicle, and amrs
What fiber surrounds myofibril?
Muscle fiber
What does astrocytes connect?
Connect blood vessels to neurons
What is the relationship between Cancer and Mitosis?
- Uncontrolled cell division
- DNA mutations
- ignoring the chepoints of mitosis
Describe Epidermolysis bullosa and what tissues are involved.
It causes fragile skin because of the absence of collage. Collagen gives structure to connective tissues. As a result, the epithelial tissues don't bind properly.
What type of joint is the elbow and knee?
Hinge
what happens when ATP binds to the myosin?
Myosin will release actin. ATP will them break down into ADP+P which gives it energy to move and bind to actin again.
What creates myelin sheath?
Oligodendrocytes