Ch. 1 Introduction to Human Anatomy & Physiology Flashcards
Define Anatomy
The study of structure
Define Physiology
The study of function
List the Levels of Organization
- Chemicals
- (Organelles)
- Cellular
- Tissues
- Organs
- Organ Systems
- Organisms
Define Growth
Increase in body size/number of cells
Define Reproduction
New organisms or cells produced
Define Responsiveness
Reaction to internal/external change
Define Movement
Change in position, motion of internal organ
Define Metabolism
The sum of all chemical reactions in an organism
Define Homeostasis
Internal balance
What are the components of the control systems called homeostatic mechanism?
- Receptor (Receive)
- Set point (Normal value)
- Effector (Bring about responses)
The body can be divided into 2 portions, what are they?
- Axial (Head, neck, and trunk)
- Appendicular (Upper and lower limbs)
The axial portion contains several cavities that house body organs, what are the cavities?
- Cranial cavity
- Vertebral canal
- Thoracic cavity
- Abdominopelvic cavity
The cranial cavity houses the
Brain
The vertebral canal houses the
Spinal cord
The thoracic cavity houses the
Heart, lungs, mediastinum
[Mediastinum: Space between the lungs, Houses the heart, trachea, esophagus, aorta, superior/inferior vena cava)
What is the mediastinum?
- The thoracic region between the two lungs, between the sternum and vertebrae
- Houses the heart, trachea, esophagus, aorta, superior/inferior vena cava
- (Splits left and right sections)
The abdominopelvic cavity consist of what cavities
- Abdominal cavity (Stomach– LUQ, Liver– RUQ, Kidneys– Retroperitoneal)
- Pelvic cavity (End of large intestine, Internal reproductive organs, Urinary bladder)
The abdominal cavity houses the
- Stomach (LUQ)
- Liver (RUQ)
- Kidneys (Retroperitoneal)
The pelvic cavity houses the
End of large intestine, urinary bladder, and internal reproductive organs
What separates the thoracic and abdominopelvic cavities?
The diaphragm
What are the membranes of the ventral cavity?
(Serous membranes)
- Pleural cavity
- Pericardial cavity
- Peritoneal cavity
Parietal pleura
lines the pleural cavity
Visceral pleura
covers the lungs
Parietal percardium
lines the pericardial cavity
Visceral pericardium
- covers the heart
- AKA epicardium
Parietal peritoneum
lines the peritoneal cavity
Visceral peritoneum
covers the organs of the abdomen
List the organs and function of the integumentary system
- Hair, skin, nails, sweat and sebaceous glands
- Regulates body temperature, acts as an outer-protective covering
List the organs and function of the skeletal system
- Bones, ligaments, tendons, and cartilage
- Support and protect
[Tendon— Joins muscle to bone]
[Ligament— Joins bone to bone]
List the organs and function of the muscular system
- Muscles
- Provides body movement, source of body heat
- (Provides support and movement)
List the organs and function of the nervous system
- Brain, spinal cord, nerves, sensory organs
- Communication throughout the body via neurotransmitters (fast acting)
- (Provides integration and coordination)
List the organs and function of the endocrine system
- All glands that secrete hormones
- (slow system) Alter metabolism of specific target cells
- The endocrine system works with the nervous system to maintain homeostasis
- [Homeostasis: Internal balance]
List the organs and function of the cardiovascular system
- Heart, blood vessels, blood
- Distribute oxygen, nutrients, & hormones, remove waste from cells– carbon dioxide
- (Provides transport of substances through the body)
List the organs and function of the lymphatic system
- Lymphatic vessels, lymph nodes, thymus, spleen, lymph (fluid)
- Drain excess tissue fluid and return it to the bloodstream
List the organs and function of the digestive system
- (1) Alimentary canal/Digestive tract— Passageway for food
- Mouth
- Esophagus
- Stomach
- Small intestine
- Large intestine
- Rectum
- Anal canal
- Anus
- Mouth
- (2) Accessory organs— Secretion helps with the digestion of food
- Salivary gland (In the mouth)
- Liver
- Gallbladder
- Pancreas
- Breaks down complex food to use in the body
- (Provide absorption and excretion)
List the organs and function of the respiratory system
- Lungs, nasal cavity, pleural spaces
- Exchanges O2 and CO2
- (Provide absorption and excretion)
List the organs and function of the urinary system
- Kidneys (2), ureters (2), urinary bladder, urethra
- Filters blood, excrete urine
- (Provides absorption and excretion)
List the organs and function of the male reproductive system
- Primary sex organs (gonads) of the male:
- Testes
- Accessory ducts:
- Seminiferous tubule
- Epididymis
- Vas deferens
- Ejaculating duct
- Urethra
- Accessory glands
- Seminal vesicle
- Prostate gland
- Bulbourethral gland
- Produces sperm (1 hormone- testosterone)
List the organs and function of the female reproductive system
- Ovaries, uterine tubes, uterus, vagina, clitoris, vulva
- Produce eggs (2 hormones, estrogen and progesterone)
Describe anatomical position
- Body erect
- Face and palms forward
- Upper limbs at sides
- [Erect: Rigidly upright or straight]
Superior
Above
Inferior
Below
Anterior
Ventral, front
Posterior
Dorsal, back
Medial
Closer to the midline
Lateral
Toward the side
Bilateral
Paired structures w/ one on each side (eyes, kidney, ovaries)
Ipsilateral
Structures on the same side of body (liver, right kidney)
Contralateral
Structures on the opposite sides of body
Proximal
Closer to point of attachment/origin
Distal
Further from the point of attachment/origin
Superficial
Near surface
Deep
More internal
The sagittal section divides the body into
right and left portions
If the sagittal section divides the body into equal parts, it is
midsagittal
The section that divides the body into superior and inferior portions is
transverse (horizontal)
The section that divides the body into anterior and posterior portions is
frontal (coronal)
A cross section is a cut
across the structure
An oblique section is an ________ cut through the structure
angular
A longitudinal section is a __________ cut through the structure
lengthwise
Epigastric
Above the stomach (Upper middle part)
Right and left hypochondriac
Below the ribs/cartilage (lateral to epigastric region)
Umbilical
Middle part
Right and left lumbar region
Lateral to umbilical region
Hypogastric region
Lower middle part, below umbilical
Right and left inguinal (iliac)
Lateral to hypogastric region
Cephalic
Head
Frontal
Forehead
Cervical
Neck
Axillary
Armpit
Mammary
Breast
Brachial
Arm
Femoral
Thigh
Occipital
Back of head
Dorsal
Posterior (back)
Lumbar
Lower back
Which organ system(s) provide body covering?
Integumentary system
Which organ system(s) provide support and movement?
- Skeletal system
- Muscular system
Which organ system(s) provide integration and coordination?
- Nervous system
- Endocrine system
Which organ system(s) provide transport of substances through the body?
- Cardiovascular system
- Lymphatic system
Which organ system(s) provide absorption and excretion?
- Digestive system
- Respiratory system
- Urinary system
Which organ system(s) provide reproduction of new offspring together?
- Male reproductive system
- Female reproductive system
The mediastinum houses…
The heart, trachea, esophagus, aorta, superior/inferior vena cava
[Mediastinum: The space between both lungs inside thoracic cavity]