Anatomy Flashcards
Sagittal plane
Splits the body into left and right
Coronal plane
Splits the body into front and back
Transverse plane
Splits the body up into top and bottom
Anterior
Front of the body
Posterior
Back of the body
Superior
Near the top of the head
Inferior
Near the soles of the feet
Medial
Nearer to the midline
Lateral
Further from the midline
Proximal
Nearer to the attachment of the limb to the body
Distal
Further from the attachment of the limb to the body
Superficial
Nearer to the surface of the body
Deep
Further from the surface of the body
Unilateral
Found on one side of
Bilateral
Found on both sides
Ipsilateral
Found on the same side
Contralateral
Found on the opposite side of the body
Flexion
Decreasing the angle between bones at a joint
Extension
Increasing the angle between bones at a joint
Abduction
Movement away from the median plane
Adduction
Movement towards the median plane
Medial rotation
Anterior surface of the limb rotates towards the median plane
Lateral rotation
Anterior surface of the limb rotates away from the median plane
Circumduction
Circular movement at a joint
Elevation
Superior movement
Depression
Inferior movement
Protraction
Anterior movement
Retraction
Posterior movement
Eversion of the foot
Sole of the foot rotates away from the median plane
Inversion of the foot
The sole of the foot rotates towards the median plane
Dorsiflexion
Upwards flexion of the foot
Plantarflexion
Downward movement of the foot
How often do skin cells regenerate
Every 3 months
How often do red blood cells regenerate
120 days
Sympathetic tone
Background, low level contraction of smooth muscle in arterioles
What causes sympathetic tone
Tonic production of action potentials to arterioles by sympathetic nerves
Anastomoses
Where arteries connect to each other without an intervening capillary network
Significance of an anastomoses
Provides collateral routes for blood flow to supply cells distal to an arterial occlusion
End artery
Only arterial blood supply to a given area
Lymph
Interstitial fluid in the lymphatic tissues
Where does the majority of lymph drain to
The left venous angle
Where does lymph from the right lymphatic duct drain
Right venous angle
Where does lymph from the thoracic duct drain
Left venous angle
Describe the basic upper limb blood supply (4)
- Subclavian artery
- Axillary artery
- Brachial artery
- Bifurcates into radial and ulnar artery
Tuberosity
Rough area of bone where muscles attach
How many vertebrae do we have
33
Order the different types of vertebrae
Cervical, thoracic, lumbar, sacral, coccygeal
How many cervical vertebrae
7
How many thoracic vertebrae
12
How many lumbar vertebrae
5
How many sacral vertebrae
5
What do sacral vertebrae fuse to form
Sacrum
How many coccygeal vertebrae
4
What do coccygeal vertebrae fuse to form
Coccyx
Name C1
Atlas
What’s special about C1
Doesn’t have a body or a spinous process, has posterior and anterior arch instead
Name C2
Axis
What’s special about C2
Has an odontoid process
Name C7
Vertebrae prominens
What makes C7 special
Arteries don’t tend to pass through
Facet joint
Between articular processes of 2 adjacent vertebrae
How many pairs of ribs do we have
12
What are the 3 types of ribs
True, false and floating
What are the true ribs
Ribs 1-7
What are the false ribs
Ribs 8-10
What are the floating ribs
Ribs 11+12
Where do true ribs attach
Via their costal cartilage to the sternum
Where do false ribs attach
Via the costal cartilage above to the sternum
Where do floating ribs attach
NO ATTACHMENT
Why is rib 1 the least likely to fracture
Protected by the clavicle
What’s involved in the pectoral girdle
Scapulae and clavicles
What’s involved in the pelvic girdle
Hip bones and the sacrum
State the 3 types of joints
Synovial
Cartilaginous
Fibrous
Pivot joints
> 45 degree rotation
Ball and socket joints
Good ranges of multi-axial movement
Plane joints
Minimal movement in one plane
Hinge joints
Reasonable range of movement in one plane
Biaxial joints
Reasonable ROM in one plane and less in another
Give an example of a pivot joint
Atlanto-axial joint
Give an example of a ball and socket joint
Hip joint
Give an example of a plane joint
Acromioclavicular joint
Give an example of a hinge joint
Elbow joint
Give an example of a biaxial joint
Metacarpophalangeal joint
Primary cartilaginous joints
Synchondroses
Secondary cartilaginous joints
Symphyses
State the 3 types of fibrous joints
Syndesmoses
Sutures
Fontanelles
Syndesmoses
Unites bones with fibrous sheet
Sutures
Between bones of the skull
Fontanelles
Wide sutures in the neonatal skull
Subluxation
Reduced area of contact between articular surfaces
Dislocation
Complete loss of contact between articular surfaces
Paralysis
A muscle without functioning motor nerve supply
Spasticity
The muscle has an intact and functioning motor nerve but controls from the brain aren’t working
Atrophy
Wasting muscles
Hypertrophy
Muscle enlarges