What does the cellular theory state about cells?
Cells are the smallest living structures in the human body performing all vital functions.
How are cells organized in the human body?
Cells organize into tissues, which form organs, then systems or apparatuses.
What do coordinated organ systems maintain in the human body?
They maintain homeostasis.
What is homeostasis?
The maintenance of internal environment balance by coordinated systems.
Why do cells in complex multicellular organisms specialize?
Because isolated cells cannot meet all needs alone.
What results from cell specialization in complex organisms?
Cells organize into structures with new functions.
What does anatomy study in living organisms?
The structure and form of living organisms and their parts.
What does descriptive anatomy describe?
The appearance of different body parts.
What does topographic anatomy study?
The proximity relationships and location of structures.
What does physiology study in living organisms?
The functions of living organisms and their parts.
At which levels can physiology be studied?
Cellular, tissue, and system levels.
What is the standard anatomical position?
The body stands upright with head and neck straight, facing forward, arms slightly apart with palms forward, and feet together pointing forward.
Why is the anatomical position used universally?
It serves as a reference to systematically locate body structures and describe spatial relationships.
What is an anatomical plane?
A two-dimensional geometric figure dividing the human body.
What direction does the sagittal axis run?
From front to back, parallel to the ground.
In which plane is the sagittal axis contained?
The sagittal, anteroposterior, or ventrodorsal plane.
What direction does the horizontal (transverse) axis run?
From one side to the other, parallel to the ground.
In which plane is the horizontal (transverse) axis contained?
The horizontal or laterolateral plane.
What is the orientation of the frontal (coronal) axis?
Perpendicular to the ground.
In which plane is the frontal (coronal) axis contained?
The frontal, craneocaudal, or superoinferior plane.
What does parietal indicate about a structure's location?
It is closer to the outer wall of a cavity.
What does visceral indicate about a structure's location?
It is closer to the organ or inside of a cavity.
What does homolateral or ipsilateral mean?
It is located on the same side.
What does contralateral mean?
It is located on the opposite side.
What does intermediate mean in anatomical terms?
It is situated between two structures.
What does afferent mean?
It means entering or carrying toward.
What does efferent mean?
It means exiting or carrying away.
What does palmar indicate about direction?
It indicates toward the palm of the hand.
What does the ventral cavity include?
The thoracic, abdominal, and pelvic cavities.
What cavities does the thoracic cavity contain?
The pleural cavities and the pericardial cavity.
What is the mediastinum in the thoracic cavity?
The central interpleural space.
Where is the abdominal cavity located and what separates it from the thorax?
Below the thorax, separated by the diaphragm.
Which organ systems are contained in the abdominal cavity?
Digestive and renal systems.
Where is the pelvic cavity located and what protects it?
Below the abdomen, protected by the pelvic bone.
What organs does the pelvic cavity contain?
Reproductive organs and parts of digestive and renal systems.
What does the dorsal cavity protect and include?
It protects nervous system organs and includes the cranial and spinal cavities.
Test your knowledge with 16 questions on General Organization of the Human Body.
1. What does cell theory identify as the smallest living structures in the human body?
2. Which sequence correctly describes how levels of organization are arranged in the human body?
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