BIOL G220/220L: Ch. 1 Flashcards
Terms and concepts from Lecture 1: Introduction and lab slides/models
anatomy
study of structure
greek meaning of anatomy
to cut up or cut open
physiology
study of function
two categories of anatomy
microscopic anatomy gross anatomy
microscopic anatomy
structures too small to be seen with the unaided eye
gross anatomy
structures that can be seen with the unaided eye
cytology
cells
histology
tissues
gross anatomy subdisciplines (6)
- comparative anatomy
- developmental anatomy
- embryology
- regional anatomy
- surface anatomy
- systemic anatomy
comparative anatomy
examines similarities and differences in anatomy of different species
developmental anatomy
study of structure changes within an individual from conception through maturity
embryology
study of developmental changes occurring prior to birth
regional anatomy
study of structures within a single region e.g. head and neck or abdomen
surface anatomy
study of internal structures as their locations relate to regions of skin or other surface markings
systemic anatomy
study of structures involved with a specific activity e.g. digestion or reproduction
structural organization of the body
- atoms
- molecules
- cells
- tissues
- organs
- systems
- organism
Characteristics of Living Organisms (7)
- Organization
- Metabolism
- Growth and development
- Responsiveness
- Adaptation
- Regulation
- Reproduction
How many organ systems are in the human body?
11
Human body organ systems
- integumentary
- skeletal
- muscular
- nervous
- endocrine
- circulatory
- respiratory
- digestive
- lymphatic
- urinary
- reproductive
Integumentary system functions (5)
- protection
- body temperature regulation
- synthesize vitamin D
- prevents water loss
- site of cutaneous receptors
Skeletal system functions (4)
- support and protection
- site of hemopoiesis
- stores calcium and phosphate
- provides sites for muscle attachment
Muscular system functions (2)
- produces body movements
- generates heat when muscles contract
- important for movement
- *abdominal muscles contain visceral support
Nervous system functions (4)
- action and information flow to effectors
- *action potentials controls body movement
- responds to sensory stimuli
- helps control other systems of the body
Endocrine system functions (4)
- hormonal messaging through glands and cell clusters
- regulates:
- body and cellular growth
- chemical levels in body
- reproductive functions
Cardiovascular system functions (4)
- transportation of oxygen and carbon dioxide
- transporting gases, nutrients, and hormones
- picking up waste (by-products from the body)
- transporting immune cells to help keep body safe
lymphatic system functions (3)
- transport and filters lymph (interstitial fluid transported through lymph vessels)
- initiates immune response when necessary
- production and maintenance of cells to fight off infection
respiratory system function (1)
exchange of gases (oxygen and carbon dioxide) between blood and air in lungs
digestive system functions (3)
- mechanically and chemically digests food materials
- absorbs nutrients
- expels waste products
urinary system functions (4)
- filters blood and removes waste product from it
- concentrates waste products in form of urine
- expels urine from body
- controls water in body and affecting blood pressure
reproductive system functions male (2) female (4)
male:
- produces male sex cells (sperms) and male hormones;
- transfers sperm to female
female:
- produces female sex cells (oocytes) and female hormones,
- receives sperm from male,
- site of fertilization of oocyte,
- cite of growth and development of embryo and fetus
Anatomic position characteristics
- standing upright feet parallel and on floor
- head level,
- looking forward
- arms at side of body
- palms facing forward and
- thumbs pointing away from body
section
cut or slice through a structure
plane
imaginary flat surface passing through the body or an organ
anatomic planes (4)
- coronal plane
- transverse plane
- midsagittal plane
- oblique plane
coronal plane
frontal divides the body into anterior and posterior parts
transverse plane
horizontal divides the body into superior and inferior parts
midsagittal plane
median divides the body into equal left and right halves *other sagittal planes divide the body into unequal left and right parts
oblique plane
diagonal passes through the specimen at an angle
anatomic directions
terms that describe the relative position of one body structure to another
anterior
in front of; toward the front surface
posterior
in back of; toward the back surface
dorsal
at the back side of the human body
ventral
at the belly side of the human body
superior
closer to the head
inferior
closer to the feet
caudal
at the rear or tail end
cranial
at the head end
rostral
toward the nose
medial
toward the midline of the body
lateral
away from the midline of the body
ipsilateral
on the same side
contralateral
on the opposite side
deep (internal)
on the inside, underneath another structure
superficial (external)
on the outside
proximal
closest to point of attachment to trunk
distal
furthest from point of attachment to trunk
regional anatomy
can be divided into two major regions: axial and appendicular
axial regional anatomy
head, neck, trunk (the vertical axis of the body)
appendicular regional anatomy
upper and lowers limb
abdominal
region inferior to the thorax (chest) and superior to the hip bones
antebrachial
forearm (the portion of the upper limb between the elbow and the wrist)
antecubital
region anterior to the elbow; also known as the cubital region
auricular
ear (visible surface strutures of the ear and the ear’s internal organs)