1. Homeostasis, Anatomical terms and Body systems Flashcards
Define Anatomy
Study of body structures and their relationships to each other.
Define Physiology
Study of how the body normally functions e.g non diseased state
Organism
Living being
System
Consists of related organs with a common function
Organ
Structure composed of two or more types of tissue
Tissues
Groups of cells and the material around them
Cells
Basic structural and functional unit of organisms
6 levels of structural organisation in the human body
- Chemical level
- Cellular level
- Tissue level
- Organ level
- Organ system level
- Organism level
11 systems of the human body
- Nervous system
- Respiratory system
- Skeletal System
- Endocrine system (hormones)
- Cardiovascular system
- Digestive system
- Urinary system
- Lymphatic/immune system
- Integumentary system (skin, hair, nails)
- Reproductive system
- Muscular system
Anatomical position
Body standing up straight
Palms facing forwards
Limbs extending
Thumbs directed outwardly
Prone vs Supine
Prone - lying face down
Supine - lying face upwards (s=sky)
Superior (cranial) vs Inferior (caudal)
Superior - towards the head. e.g the heart is superior to the liver
Inferior - further from the head. e.g the stomach is inferior to the lungs
Posterior (dorsal) vs Anterior (ventral)
Posterior - towards the back of the body.
Anterior - towards the front of the body
Proximal vs Distal
Proximal - nearer to the attachment of a limb to the trunk. e.g the humerus is proximal to the radius
Distal - farther from to the attachment of a limb to the trunk. e.g the phalanges are distal to the carpals
Midline
Line that divides the body lengthways into two
Medial
Closer to the midline. e.g the ulna is medial to the radius
Lateral
Further from midline. e.g the radius is lateral to the heart
Superficial vs Deep
Superficial - towards the surface of the body. e.g the ribs are superficial to the lungs
Deep - away from the surface of the body.
Sagittal plane
Divides the body into equal right and left halves
Frontal (coronal) plane
Divides body into anterior and posterior portions
Transverse (horizontal) plane
Divides the body into superior and inferior portions