Trimester 1 +2 Review Flashcards
What is anatomy?
the study of structures like tissues
What is physiology?
the study of functions like how the tissues work
What is the relationship between anatomy and physiology?
They depend on each other and focus on the human body, anatomy must be studied before physiology
What is the human body organization from least to most complex?
chemical, cellular, tissue, organ, organ system, organism
What is the function of the integumentary system?
Synthesizes vitamin D, protects, waterproofs, maintains boundaries, aids in the excretion of urea + uric acid, aid in heat loss or retention
What is the function of the skeletal system?
Protects + supports body organs, framework for motion by muscular action, formation of blood cells, mineral storage
What is the function of the muscular system?
Allows manipulation of environment, locomotion, posture maintenance, heat production
What is the function of the digestive system?
Break down food into absorbable units, excretes indigestible wastes
What is the function of the urinary system?
Elimination/extretion of nitrogenous wastes; regulates water, pH balance and electrolytes
What is the function of the circulatory system?
Deliver oxygen and nutrients to body tissues
What is the function of the respiratory system?
gaseous exchange between the body and environment
What is the function of the nervous system?
Fast action control system that responds to external and internal changes, uses electric signals
What is the function of the lymphatic system?
houses white blood cells, involved in immunity, picks up loose fluid leaking from blood vessels to filter and return to blood
What is the function of the endocrine system?
Glands that secrete hormones that regulate body processes
What is the function of the reproductive system?
Production of offspring
What are two parts of the integumentary system?
Skin + Sweat Glands
What are two parts of the skeletal system?
Bones + Joints
What are two parts of the muscular system?
Skeletal + Cardiac Muscle
What are two parts of the digestive system?
Stomach + Esophagus
What are two parts of the urinary system?
Kidneys + Urinary Bladder
What are two parts of the circulatory system?
Heart + Blood Vessels
What are two parts of the respiratory system?
Pharynx + Bronchi
What are two parts of the nervous system?
Brain + Spinal Cord
What are two parts of the lymphatic system?
Thoracic Duct + Lymph Nodes
What are two parts of the endocrine system?
Pinal Gland + Pituitary Gland
What are two parts of the reproductive system?
Female: Overies +Uterus
Male: Testes + Penis
What are the eight functions needed to maintain life?
Responsiveness, digestion, metabolism, maintaining boundaries, movement, excretion, reproduction, growth
What body system is associated with responsiveness?
Nervous
What body system is associated with digestion?
Digestive
What body system is associated with metabolism?
Endocrine
What body system is associated with maintaining boundaries?
Integumentary
What body system is associated with movement?
Muscular + Skeletal
What body system is associated with excretion?
Digestive, Urinary, Respiratory
What body system is associated with reproduction?
Reproductive + Endocrine
What is homeostasis?
The body’s ability to maintain a stable internal environment
How does homeostasis work?
It uses receptors to monitor changes, a control center to determine responses, and effectors to shut off or increase the stimuli
What is negative feedback?
when the body reduces or shuts off the stimulus like breathing
What is positive feedback?
when the body enhances or increases the stimulus like blood clotting
What is disease?
Disruption of homeostasis
Why does the medical industry use medical terminology?
To reduce the amount of memorization and prevent misunderstandings
What is the human anatomical position?
Upright, feet together, eyes, palms, and feet face forward
Nasal
Nose
Axillary
Armpit
Carpel
Wrist
Pubic
Genitals
Buccal
Cheek
Femoral
Thigh
Lumbar
Lower back
Brachial
Upper arm
Cephalic Occipital
Back of head
Superior
Above
Inferior
Below
Dorsal
Towards the back
Ventral
Towards the front
Anterior
Front
Posterior
Back
Medial
Towards middle
Lateral
Towards outer side
Proximal
Close to origin
Distal
Far from origin
What is the median plane?
A cut separating the left and right sides of the body
What is the frontal plane?
A cut separating the anterior and posterior
What is the transverse plane?
A cut separating the superior and inferior
What is in the ventral cavity?
Thoracic, abdominal, pelvic
What is in the dorsal cavity?
Cranial and spinal
What are the 9 abdominal regions
Right hypochondriac, epigastric, left hypochondriac, right lumbar, umbilical, left lumbar, right iliac, hypogastric, left iliac
What is a cell?
The smallest unit of life
What does the cell membrane do?
Serve as a barrier
What does the smooth ER do?
Detoxify drugs and involved in lipid metabolism
What do ribosomes do?
Make proteins, and involved in protein synthesis
What does the nucleus do?
Serve as the control center; house DNA, nucleolus, and nuclear envelope
What does the mitochondria do?
The powerhouse of the cell carries out reactions with oxygen
What do peroxisomes do?
Detoxify harmful substances like alcohol
What does the Golgi apparatus do?
Modifies and packages proteins
What do centrioles do?
Involved in cell division
What are the steps of mitosis?
Interphase, prophase, metaphase, anaphase, telophase, cytokinesis
What does interphase look like?
The cell grows
What does prophase look like?
Chromosomes are visible as the nuclear envelope disappears
What does metaphase look like?
Chromosomes line up in the middle of the cell
What does anaphase look like?
Chromosomes move to opposite poles
What does telophase look like?
Nuclear membrane reappears
What does cytokinesis look like?
The cell separates into two identical cells
What organelle is responsible for cell division?
Centrioles
What is tissue?
A group of cells that function the same
What is the function of epithelial tissue?
Protection of body surfaces, secretion of substances, absorption of substances, filtration of substances
What are the characteristics of epithelial tissue?
Lots of cells, always one free surface, avascular
What is the function of connective tissue?
Bind body tissues, support body, insulates to maintain body temperature
What are the characteristics of connective tissue?
Most abundant, mainly EC matrix
What is the function of muscle tissue?
To produce movement
What are the characteristics of muscle tissue?
Packed cells, vascular, elongated shape
What is the function of nervous tissue?
Communication, regulate body functions, carry electrical signals
What are the characteristics of nervous tissues?
Non-regenerative and unique structures
What does the integumentary system protect the body from?
Mechanical (bumps), Chemical (acids + bases), Bacteria, UV Radiation, Thermal (heat), Desicaation (Drying out) damage
What substances does the skin excrete?
Urea, uric acid +sweat
What are the layers of the epidermis?
Papillary (Upper) + Reticular (Deepest)
What is the papillary layer?
Pain + touch receptors
What is the reticular layer?
Blood vessels, sweat and oil glands
What is the hypodermis made of?
Adipose tissue
What is the function of the hypodermis?
Achor skin to underlying organs
What is melanin?
Skin pigment
Where is melanin found?
Stratum basle of the epidermis
What is the muscle that causes goosebumps?
Arrecter pili muscle, smooth muscle that is connected to hair
What gland produces oil?
Sebaceaous glands (empty into hair follicles or skin)
What gland produces sweat?
Sudoriferous Glands (widely distributed)
What is the deepest layer of skin?
The hypodermis
What skin layer contains nerves?
The dermis
What skin layer is vascular?
The dermis
What skin layer contains adipose tissue?
The hypodermis
What skin layer contains sweat and oil glands?
The dermis
What layer of skin contains a hair follicle?
The dermis
What skin layer contains pores?
The dermis
What is the function of the Skeletal System?
Support the body, Protect soft organs, allow movement, store minerals and fat, blood cell formation
What do osteoblasts do?
Form bones
What do osteocytes do?
Mature bones
What do Osteoclasts do?
Destroy bones