Skeletal System Exam Revision Flashcards
Name 4 functions/purpose of the skeletal system
Provides body with a framework to suspend muscles and organs
Provides: protection and support
Contains Joints which create movement.
What attaches muscle to a bone
Tendons
What type of tissue is a tendon
Connective Tissue
What can be found inside a bone and name the 2 types
Bone Marrow
Red and Yellow
What does red bone marrow produce
ALL cells
Name 3 types of cells produced in the red bone marrow
Erythrocytes
Thrombocytes
Leukocytes
What is the main type of blood cancer
Leukaemia
What is a common symptom of blood cancers
Bone Pain
Which parts of the skeleton contain red bone marrow (name 2)
Axial Skeleton
Apendicular skeleton
What does the skeleton provide a large surface area for
Mineral Homeostasis
Name 3 minerals found in the skeleton
Calcium
Magnesium
Phosphorus
Describe 3 properties of bone
Living
Has rich blood supply
Strong but flexible
What can be found/is stored in Yellow Bone Marrow
Triglycerides (Fats)
What type of cells are ALL bone cells
Osteogenic Cells
What process do bone cells undergo to reproduce/replicate.
Mitosis
What is the name for an immature bone building cell
OsteoBlast
What is the name for a mature bone cell
Osteocyte
Name 2 substances that Osteoblasts secrete
Collagen
Bony Matrix
What is the name of the bone cell responsible for breaking down of bone
Osteoclast
What do Osteoclasts contain which help to break down the bone matrix
Lots of Lysosomes
What happens on a cellular level if some experiences Osteoporosis
Too much osteoclast activity compared to osteoblast activity.
Name 2 things which contribute to bone building activity
Weight bearing exercises stimulates osteoblast activity
Sex Hormones - Oestrogen
Give another risk factors for developing Osteoporosis (aside from age)
Trauma eg fractures or surgery
Give an example Type and name of a bone where Compact Bone can be found
Long Bone - Femur
Name 2 features of compact Bone.
Always on outside of bone
Strong
What is the double layered membrane called of compact bone
Periosteum