Connective Tissue Flashcards
List the different Connective Tissues
- Loose connective tissue that attaches Epithelial tissue to underlying structures
- Tendons
- Bones
- Blood
Name the 3 bone cells
- Osteoblasts
- Osteocytes
- Osteoclasts
Define the function of Osteoblasts
Move into the cavity and secrete osteoid to fill in holes.
Define the function of Osteoclasts
Resorb bone to form a cavity
Fill in the blanks:
___ ___ at the ends of the bone surrounding the ___, the ___ ___ separates the ___ from the ___ the ___ ___ is in the centre of the bone.
Word Bank: Epiphysis, Cavity, Marrow, Epiphyseal, Articular, Diaphysis, Cartilage, Plate, Epiphysis.
Articular cartilage at the ends of the bone surrounding the epiphysis, the Epiphyseal plate separates the Diaphysis from the Epiphysis the Marrow Cavity is in the centre of the bone.
How does the growth of bones occur?
Through the addition of new bone upon previously existing bone.
Fill in the blanks:
Growth in ___ occurs as ___ undergo cell division, the previous older ___ grow larger. This thickens the ___ ___. This is known as ___.
Word Bank: Chondrocytes, Plate, Chondrocytes, Length, Epiphyseal, Ossification.
Growth in length occurs as Chondrocytes undergo cell division, the previous older Chondrocytes grow larger. This thicken the Epiphyseal Plate. This is known as Ossification.
What becomes of Osteoblasts at a stage in bone growth, and what is this stage?
They becomes Osteocytes in the Mature nongrowing bone stage.
What can Growth Hormones promote and what stops them from promoting?
Promotes bone lengthening, but can only lengthen bones if the bone is cartilaginous, but can no longer grow if they ossify the plate so they can no longer lengthen.
What vital role does the skeleton have?
To act as a storage depot for Ca^2+
Free Roaming Calcium plays a role in activities such as
Neuromuscular Activity.
Excitation-contraction coupling in cardiac and smooth muscle.
Stimulus-secretion coupling.
Excitation-secretion coupling.
Maintenance of tight junctions between cells.
Clotting of blood.
Important intracellular 2nd messenger.
Essential for structural and functional integrity in bone and teeth.
What hormone raises Calcium in the plasma when it starts to fall?
Parathyroid Hormone
What is Osteoporosis and how can it be mitigated?
A decrease in bone density due to reduced deposition of bones organic matrix, can be prevented through exercise.
What are the layers of the skin in order?
Epidermis > Dermis > Hypodermis.
The Epidermis consists of what?
Consists of Epithelial cells and contains an inner and outer layer.
