Vocabulary 1
The process by which large molecules are taken into a cell
What is endocytosis?
What is exocytosis?
The interface between a neuron and another cell
What is a synapse?
How do epithelial cells get oxygen and nutrients?
Through diffusion. The basement membrane is avascular.
If a hair cell contains no keratin, where is it?
In the matrix.
spindle-shaped cells that form connective tissue proper
What are fibroblasts?
Mature cartilage cells
What are chondrocytes?
One motor neuron and all the muscle fibers it innervates
What is a motor unit?
What type of membrane is found around joints?
What is synovial membranes?
What layer of skin is superficial to the dermal papillae?
The epidermis sits on top of the dermal papillae
Bone with many small spaces or cavities surrounding the bone
What is cancellous bone?
Dense bone matrix enclosing only a few small spaces
What is compact bone?
A stimulus strong enough to create one action potential in a neuron
What is a threshold stimulus?
While looking at some tissues under a microscope you notice that the cells are in little pockets. What kind of tissue is this?
It is cartilage.
When a bone is repaired, what holds the pieces together while the repair occurs?
The external callus
A mature bone cell surrounded by bone matrix
What is an osteocyte?
A bone-forming cell
What is an osteoblast?
1.Neurons that transmit action potentials from sensory receptors to the CNS
2. Neurons that transmit action potentials from the CNS to the effector organs
1.What are afferent neurons?
2.What are efferent neurons?
How do larger molecules, such as carbohydrates, enter a cell?
By using carrier proteins
What types of joints in the body provide for little or no motion?
Fibrous joints or cartilaginous joints
The chemical substances located between connective tissue cells
What is extracellular matrix?
the process of manufacturing blood cells
What is hemopoiesis?
The point at which a muscle's tendon attaches to the more stationary bone...
What is origin?
What type of tissue make up the following:
1. spinal cord
2. organ lining
3. muscles
1. nervous tissue
2. epithelial tissue
3. muscle tissue
Why must the bone be continually remodeled? There are several reasons. Name one
1. reshape bone as needed
2. repair broken bones
3. replace worn collagen
4. regulate calcium levels in the body