Unit 1: Terminology, Positions, and Planes

Practice flashcards covering Chapter $$1$$ and Chapter $$2$$ concepts including anatomical divisions, directional terminology, anatomical position, and body planes.

What is the difference between systemic anatomy and regional anatomy according to the lecture?

Systemic anatomy is the study of the human body by each organ system (such as the cardiovascular system), while regional anatomy divides the body into specific regions like the head, shoulder, or legs.

How are surface anatomy, gross anatomy, and microscopic anatomy defined?

Surface anatomy refers to physical surface markings like skin bruising; gross anatomy involves structures visible to the unaided eye, such as eye color; and microscopic anatomy requires a microscope to see small structures like cells and tissues.

What are the specific fields of study for tissues and cells?

The study of tissues is called histology, and the study of cells is called cytology.

What do the medical prefixes 'hypo-', 'hyper-', and the suffix '-itis' mean?

'Hypo-' means below, 'hyper-' means high or above, and '-itis' signifies inflammation.

What are the requirements for the 'anatomical position' when assessing a patient?

The patient must be standing upright with feet shoulder-width apart, arms at the sides, and palms facing forward.

In anatomical terminology, whose perspective is used for the terms 'right' and 'left'?

The terms 'right' and 'left' always refer to the patient's point of view, not the observer's perspective.

What are the terms for the front and back of the body, and what tricks are mentioned to remember them?

Anterior (or ventral) refers to the front; the lecturer uses the French word 'ventre' (stomach) as a trick. Posterior (or dorsal) refers to the back, similar to a 'dorsal fin' of a dolphin.

How do the terms 'superior' and 'inferior' describe positions in the axial region?

Superior (cranial) means moving towards the head, while inferior (caudal) means moving towards the tail.

What is the difference between proximal and distal in relation to the limbs?

Proximal means a structure is closer to the point of origin (the shoulder for arms or the hip for legs), while distal means it is further away (more distant) from the point of origin.

How are 'medial' and 'lateral' defined in relation to the body's midline?

Medial refers to structures closer to the imaginary midline of the body, while lateral refers to structures further away to the side.

Contrast the terms 'superficial' and 'deep' using the skin and bone as examples.

The skin is the most superficial structure as it is furthest out, while the bone is deep because it is further inside the body.

What are the $2$ major regions the body is divided into?

The axial region, which consists of the head, neck, and trunk, and the appendicular region, which includes the appendages like arms and legs.

Which specific regional terms were highlighted as important for lab and lecture?

Thoracic (chest), sternal, lumbar, vertebral, plantar (below foot), cervical (neck), and crural (front of the shin).

What are the characteristics of the sagittal plane?

A sagittal plane divides the body or a body part into right and left sections. A midsagittal plane is perfectly down the middle, while a parasagittal plane is off-center.

How does the frontal (coronal) plane divide the body?

The frontal or coronal plane divides the body into anterior (front) and posterior (back) sections.

What does a transverse plane divide?

A transverse plane divides the body into superior (top) and inferior (bottom) sections, or proximal and distal sections if applied to a limb.

Why is it critical for healthcare workers to confirm the 'left' and 'right' side of a patient before a procedure?

To prevent medical errors such as performing an amputation or incision on the wrong side of the body, which requires multiple professionals to verify the correct site.