Chapter 4 Body Structure Flashcards
Five levels of organization in the body
Cells, Tissues, Organs, Organ Systems, Organisms
Cyt/o
Cell
Cell
Smallest unit in animals and plants, sustain life
Cell Membrane
Surrounds, protects, regulates what’s passing through cell
Cytoplasm
Jelly substance in cell with nutrients, proteins, salts, water, dissolved gas. Stays outside of nucleus
Nucleus
Determines structure and function of cell
Nucleus dictates…
Metabolism, growth, and reproduction
What does the DNA in nuclei form
Chromosomes
of chromosomes in human body
23 pairs
of chromosomes in sex cells
23 unpaired
Tissues
Groups of similar cells that perform a specific function
Hits/o
Tissue
Epithelial Tissue
Outer layer of skin, covers the surface of organs, lines cavities and canals, forms tubes and ducts, makes secreting portions of glands
Connective tissue
Supports and connects other body tissues
Muscle tissue
Tissue that can contract and creates movement
Nervous Tissue
Transmits and relays electrical signals throughout the body
Four types of tissues
Epithelial, connective, muscle, nervous
Organs
Two or more tissues working to perform a specific function
Viscer/o
Internal organs
Body systems
Groups of organs working to perform a complex function
Organism
Multiple organ systems working to perform complex functions
Coronal/ frontal plane
Divides into anterior and posterior
Sagittal Plane
Divides into left and right
Transverse Plane
Divides body into superior and inferior
Medial
Middle of structure
Lateral
Side of structure
Anterior
Front of the body
Posterior
Back of the body
Superior
Above another structure
Inferior
Below another structure
Proximal
Near the point of attachment
Distal
Far from the point of attachment
Supine
Lying on the back
Prone
Lying on the stomach
Deep
Away from the surface
Superficial
Close to the surface
Abduction
Moving away from the midline of structure
Adduction
Movement towards the midline of structure
Inversion
Turning inward
Eversion
Turning outward
Palmar
Pertaining to palm of hand
Plantar
Pertaining to sole of feet
Visceral
Pertaining to viscera or internal organs
Parietal
Pertaining to the outer wall of a body cavity
Body cavities
Spaces within the body that hold, protect, separate and support internal organs
Two main body cavities
Dorsal cavity, Ventral, cavity
Abdomin/o
Abdomen
Pelvic/o
Pelvis
Four quadrants in Abdominopelvic region
Right upper, right lower, left lower, right lower
RUQ
Right upper quadrant
RLQ
Right lower quadrant
LUQ
Left upper quadrant
LLQ
Left lower quadrant
Regions (9) of abdominopelvic area
Right hypochondriac, epigastric, left hypochondriac, right lumbar, umbilical, left lumbar, right inguinal (iliac), hypo gastric, left inguinal (iliac)
Regions of the Spine
Cervical, thoracic, lumbar, sacral, coccygeal
Crevice/o
Neck
Thorac/o
Chest
Lumb/o
Low back
Sacr/o
Sacrum
Coccyg/o
Coccyx
Adhesion
Abnormal fibrous band that holds or binds together tissues that are normally separated
Edema
Abnormal accumulation of fluid writhing tissue spaces as a result of systematic disease or failure of the lymphatic system to drain tissue fluid from the cite
Febrile
Having or showing symptoms of a fever
Inflammation
Body’s defense against injury, infection, or allergy marked by redness, swelling, heat and pain, sometimes with loss of function
Auscultation
Listening to the heart, bowel, lungs with or without a stethoscope to assess the presence and quality of sounds
Palpation
Gentle application of the hands to a specific structure or body area to determine size, consistency, texture, symmetry, and tenderness of underlying structures
Percussion
Tapping a body structure with the hand or fingers to assess consistency and the presence or absence of fluids within the underlying structure
Tom/o
To cut
Chromatin
Structural component of the nucleus, composed of nucleic acids and proteins
Chromosome
Threadlike structures within the nucleus composed of deoxyribonucleic acid (DNA) that carries hereditary information encoded in genes
Deoxyribonucleic acid (DNA)
Molecule that holds genetic information capable of replicating and producing an exact copy whenever the cell divides
Metabolism
Sum of all physical and chemical changes that take place in a cell or an organism
Organelle
Cellular structure that provides a specialized function, such as the nucleus (reproduction), ribosomes (protein synthesis), Golgi apparatus (removal of material from the cell), and lysosomes (digestion)