Anatomy (MSK) Flashcards
What are tendons, joints, ligaments and bursae?
Tendon = Tough, flexible band made of fibrous connective tissue; Connects muscle to bone
Joints = Bone articulations allowing movement
Ligament = Dense white band of fibrous elastic tissue; Connects the end of bones to form a joint; Limits joint dislocation and restrict improper hyperextension/hyperflexion
What are two types of skeletons and the examples of them?
- Axial skeleton (Skull, vertebral column, thorax)
- Appendicular skeleton (Pectoral girdle, pelvic girdle)
Four types of bones and two types of bone tissue
- Long bones
- Short bones
- Flat bones
- Irregular bones
Bone tissue
1. Compact bone
2. Spongy Cancellous Bone
Seven functions of bones
Mechanical:
1. Movement
2. Support
3. Protection
Homeostasis:
1. Blood formation
2. Electrolyte balance
3. Acid-base balance
Storage of energy
What are bones made up of?
- Periosteum and Endosteum
- Red marrow
- Yellow marrow
- Marrow cavity
- Articular cartilage
What is the structure of a long bone?
- Diaphysis (Shaft)
- Metaphysis
- Epiphysis (End)
Bone tissues are hard connective tissues consisting of which 3 types of cells? How do they function?
- Osteoclast: Bone resorption
- Osteocytes: Maintenance, Remodeling, Mechano-sensing; Trapped in Lacunae
- Osteoblast: Bone formation
What minerals are present in bone?
- Organic protein fibers and collagen
- Inorganic ions (Hydroxyapatite, CaPO4)
What is an osteon?
A structural unit of a compact bone consisting of
– Osteocytes, lacunae & canaliculi.
– Concentric lamellae, outer/inner circumferential, interstitial lamellae.
– Central (Haversian) & perforating (Volkmann) canals.
Where are spongy bone tissues found?
Skull, Vertebrae, Sternum, Pelvis
Why are spongy bones spongy?
Marrow cavity is found between trabeculae beams or plates
What are the 6 types of bone on the skull?
- Frontal
- Parietal
- Temporal
- Occipital
- Maxilla
- Mandibular
Identify the 15 bones from head to toe
Axial:
1. Vertebrae
2. Rib
3. Sternum
4. Clavicle
5. Scapula
6. Cranium
7. Mandible
Appendicular:
1. Humerus
2. Radius
3. Ulna
4. Femur
5. Tibia
6. Patella
7. Fibula
8. Hip Bone
What are cartilages made of?
- Chondrocytes
- Collagen (Elastic fibre)
- Glycosaminoglycans/Proteoglycans (Ground substance)
Where can cartilage be found?
Nose, outer ear, larynx, trachea, articulating ends of bones