1A - Introduction Flashcards
Biology
Study of living organisms
Physiology
Subdivision of biology that is concerned with the functioning of the body
- explains the chemical and physical processes
Anatomy
Subdivision of biology that is concerned with the form, structure or morphology of the body
Cytology
study of cells
Histology
study of tissues
Gross anatomy
study of structure visible to naked eye
Surface anatomy
Study of the surface structures
Developmental anatomy
Aka embryology; development prior to birth
Comparative anatomy
comparing human structure to animals
Radiology
Use of radiation to visualize internal body structure
Anatomical pathology
study of tissue that departs from the normal and thus is diseased
Cell
Smallest unit of living matter and the
characteristic building block of all plant and animal
tissue
Tissue
Collection of cells of similar structure and function
Organ
consists of two or more tissues blended in such a way as to form a structure, which can perform one function or related functions
Organ systems
Consists of one or more organs that act together in performing a major function of the body
Methods of study
Regional and Systemic
Regional method of study
natural subdivisions of the body including (9 total)
9 subdivisions of the body (regional)
Head: facial region and cranium, neck, thorax (chest), abdomen, pelvis, back (posterior aspect of thorax, abdomen and pelvis), trunk (combination of thorax, abdomen, pelvis and back), Upper limb (extremity): pectoral region, arm, forearm, and hand, Lower limb (extremity) gluteal region, thigh, leg and foot
Systemic method of study
According to the major body systems; collections of organs that perform related functions; 12 systems
What are the 12 organ systems?
Circulatory/cardiovascular, lymphatic, respiratory, digestive, urinary, Integumentary, skeletal, muscular, articular, nervous, endocrine, and reproductive
Cardiovascular/circulatory (structure and function)
S: heart and blood vessels
F: transports nutrients and oxygen to the cells, removes waste molecules that are excreted from the body
Lymphatic (structure and function)
S: lymphatic vessels, nodes, supporting lymphocytes and lymphoid organs
F: protects body from disease by purifying fluid. Involves white blood cells that produce antibodies
Respiratory
S: lungs, pharynx, trachea, and larynx
F: conducts air, brings oxygen into lungs and takes CO@ out
Digestive
S: mouth, esophagus, stomach, small and large intestine, teeth, tongue, salivary glands, liver, gall bladder and pancreas
F: receives food and digests it into nutrient molecules which enter the cells
Urinary
S: kidneys, uterus, bladder, urethra
F: rids the body of nitrogenous wastes and helps regulate the fluid level and chemical content of blood
Integumentary
S: epidermis and dermis, skin, hair, nails, sebaceous glands, sweat glands and subcutaneous tissue
F: provides support and protects underlying tissues, helps regulate body temp, and contains receptors
Skeletal
S: bones of skeleton
F: framework, movement of body
Muscular
S: muscles
F: movement of body
Articular (between bones)
S: joints
F: movement of body
Nervous
S: brain, spinal cord, and nerves
F: conducts nerve impulses to muscles and glands and receive impulses
Endocrine
S: hormones, endocrine glands
F: secretes chemicals that serve as messengers between body parts, maintains proper functioning of reproductive organs
Reproductive
S: reproductive organs
F: reproduction
Anatomical position
- body longitudinal
- upper limbs by side
- eyes directed forward
- Palms directed forward
- toes directed forward
Median (midsagittal) plane
1 vertical plane passing through the body dividing it into equal left and right parts
Sagittal plane
any vertical plane that parallels the median plane and divides the body into unequal left and right parts (infinity planes)
Frontal (coronal) plane
any vertical plane that divides the body into front and back parts
horizontal (transverse) plane
divides the upper and lower body
Medial
Nearer the median plane. Example: the neck is medial to the shoulder
Lateral
farther away from the median plane (the shoulder is lateral to the neck)
Anterior (ventral)
nearer the front
Posterior (dorsal)
nearer the back
Superior (cephalic)
near the upper head end
Inferior (caudal)
nearer the tail end
Proximal
nearer the attached end of a limb (shoulder lies proximal to elbow)
Distal
farther away from attached end of a limb (our elbow lies distal to shoulder)
Internal
nearer the center of an organ or cavity
External
Farther away from the center of an organ or cavity
Superficial
nearer the surface of the body
Deep
Farther away from the surface of the body
Supine position
lying on back, belly up
Prone position
lying on front, back up
The following can be seen with the aid of a microscope
Tissues
When riding a bicycle, what plane are your lower extremities moving in?
Sagittal
Choose the answer that includes the correct subdivisions of anatomy.
radiology, gross, surface, developmental
Choose the correct statement in regards to the endocrine system.
It maintains proper functioning of reproductive organs.