Joints Muscles Ad Reflexees Flashcards

1
Q

Types of joints

A

Synovial
Fibrous
Cartilaginous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Synovial - articulate/ hyaline cartilage

A

Cots 2 bones that meet each other reduces friction and distributes weight easily - gets thinner with age

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Synovial - joint capsule

A

Wrapped in fibrous tissue that hold bones together s

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Synovial - synovial membrane

A

Delicate epithelial layer lilies the capsule and covers all non weigh Bering surfaces inside the ointment
It secretes synovial fluid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Fibrous

A

Bones for in theses joints are linked together with tough fibrous material which means the joint is unable t move like teeth
Strengthens bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cartiliginous

A

Tough fibre cartilaginous material binds bones together
Restricts movement in pubic symphysis or there is no movement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Muscle cell structue

A

Multiple nuclei
Sarcolemma - cell membrane
Sarcoplasm - cytoplasm
Myofibrils - actin - thin myosin- thick gives striated appearance
Lots of mitochondria to produce atp
Produce myoglobin help store o2 in cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Muscle tissue

A

Cyclindrical
Row of fibres are made up of bundle called fascicles
Each bundle covered with a tissue sheath called the perimysium
Individual muscle fibres wrapped in fine conductive layer called endomysium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Intro muscular injection

A

Pass through subcutaneous tissue to penetrate skeletal muscle where there is rich blood supply so medication will be absorbed quicker and more effectively

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where IM injections take place

A

Thigh - day to access but painful
Ventroglutal site - away from major blood vessel but rarely used
Deltoid - arm - easy to access

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Involuntary reflex

A

Cough
Pupillary reflex
Patella tendon
Plantar reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Cough reflex

A

Nerve ending in larynx trachea and bronchi sensitive to irritation which generate nerve impulses to vagus nerve to respiratory centre to brain stem
Reflex is deep inspiration and closure of glottis
Abdomen and respiratory muscle = sudden and rapid pressure
In lungs glottis opens expelling air or mucus out of mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Pupillary reflex

A

Shine light on one eye while other is closed should constrict
Assesse brain trauma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Patella tendon

A

Knee jerk
Tap below knee with Taylor hammer
Assess nerve between lumber 2 and 4 on spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Planter reflex

A

Draw handle of hammer along lateral border of foot from heel to big toe
In adults toes flex and move together
In babies toes flare and big toe moves upwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Bone healing stage 1

A

haematoma (collection of clotted blood) forms rapidly between the bone ends and the surrounding soft tissues. An acute inflammatory response causes swelling and attracts inflammatory cells, including macrophages. This stage may be very painful, as the periosteum contains many sensory nerve endings.

17
Q

Bone healing stage 2

A

haematoma is stabilised with large amounts of fibrin and becomes the framework for the formation of granulation tissue (p. 407 ). Fibroblasts migrate to the site to lay down collagen fibres and other repair materials. Osteoblasts begin laying down new osteoid and the bone ends are joined with these soft tissues. Macrophages phagocytose dead bone and other tissues, to clear the way for new bone, and new capillaries begin to grow into the granulation tissue, restoring blood supply.

18
Q

Bone healing stage 3

A

After about 2 weeks, bony callus forms as osteoblasts begin to calcify the osteoid. Callus is laid down as spongy bone and unites, supports and splints the fracture.

19
Q

Bone healing 4

A

period of remodelling converts the external callus to compact bone and recanalises the bone. Assuming healing has proceeded normally, bone structure is back to normal, and the bone at the site of the original callus may even be slightly thicker than before. The whole process can take months, depending on the degree of damage.