ACE Fitness Essentials of Exercise Science Chapter 1 Flashcards
Anterior (ventral)
Toward the front
Posterior (dorsal)
Toward the back
Superior
Toward the head
Interior
Away from the head
Medial
Toward the midline of the body
Lateral
Away from the midline of the body
Proximal
Toward the attached end of the limb, origin of the structure, or midline of the body
Superficial
External; located close to or on the body surface
Deep
Internal; located further beneath the body surface than the superficial structures
Cervical
Regional term referring to the neck
Thoracic
Regional term referring to the portion of the body to the neck and abdomen; also known as the chest (thorax)
Lumbar
Regional term referring to the portion of the back between the abdomen and pelvis
Plantar
The sole or bottom of the feet
Dorsal
The top surface of the feet and hands
Palmar
The anterior or ventral surface of the hands
sagittal plane
The longitudinal (imaginary) line that divides the body or any of its parts into right and left sections
Frontal plane
A longitudinal (imaginary) section that divides the body into anterior and posterior parts; lies at the right angle of the sagittal plane
Transverse plane
Also known as the horizontal plane; an imaginary line that divides the body or any of its parts into superior and inferior sections
_______ and ________ carry oxygen-rich blood away from the heart
Arteries and arterioles
_______ and ________ returns oxygen-poor blood to the heart
Veins and venules
________ connects arteries and veins and provide sites for gas, nutrients, and waste exchange between the blood and tissues
Capillaries
The right two chambers (right atrium & right ventricle) push deoxygenated blood into the lungs where it releases carbon dioxide in exchange for oxygen is called _______
Pulmonary circuit
The Left two Cambers (left atrium & left ventricle) receives newly oxygenated blood from the lungs and pumps it into the various tissues of the body through the ________
Systemic circuit
Explain the route blood flow beginning when it exits the heart and ending when it re-enters the heart through the inferior and superior vena cava.
As blood leaves the heart, it is carried by the arteries. As arteries lead away from the heart, their branches to form a “tree” of smaller, microscopic vessels called arterioles. Eventually, the arterioles develop into “beds” of much smaller structures, the capillaries. Blood passes from the capillary beds to small venous vessels called venules. As venules lead back to the heart, they increase in size and become veins (eventually leading to the inferior and superior vena cava)
Explain the route blood flow beginning when it leaves the right ventricle of the heart and enters left atrium.
The right ventricle pumps the blood into lungs through the pulmonary arteries. In the lungs, the blood picks up a fresh supply of oxygen and gives off carbon dioxide. The oxygenated blood returns from the lungs to the left atrium through the pulmonary veins.
Explain the concept of “form follows function” as they relate to the skeletal system and describe the importance of exercise and maintaining bone density throughout life.
Wolff’s law indicate that changes in the bone structure coincide with the changes in bone function. That is, when a skeleton is subject to stressful forces, such as those that occur when exercise, it responds by laying down more bone tissue, thereby increasing its density. Conversely, when individuals experience prolonged period of bed rest due to illness or injury, their bone loses mineral and become less dense.
What axis? Imagine a pin that inserts through the joint from front to back (anteriorly and posteriorly). Because of the pin’s position, the only movement allowed around this axis is lateral movement (abduction or adduction) in the frontal plane.
Anteroposterior Axis (also known as the Sagittal Axis)
What axis? take our imaginary pin and insert it from a mid-point at the side of the body. The position of our pin allows only forward and backward movement (flexion and extension) in the sagittal plane around this axis.
Mediolateral Axis (also known as the Transverse Axis)
what axis? If we insert our pin through the joint from top to bottom, it will allow movement in transverse plane only (i.e., rotation)
Longitudinal Axis
what joint rotate in one axis, allowing movement in one plane? The elbow joint is a hinge joint because it only moves forward and backward (flexion and extension) in the sagittal plane
Uniaxial or uniplanar joints (also called hinge joints)
what joints rotate in two axes, allowing movement in two planes?
Biaxial or biplanar joints
what joints rotate in all three axis, allowing movement in all three planes.
Multiplanar or triaxial joints
What angular movement? The move in which the bone comprising a joint movement towards each other in the sagittal plane, decreasing the joint angle between them.
Flexion
What angular movement? Causes the angle between two adjointing bones to increase in the sagittal plane.
Extension
What angular movement? Occurs when a part of the body is moved away from the midline of the body in the frontal plane.
Abduction
What angular movement? The movement of the body part toward the midline of the body in the frontal plane.
Adduction
Move the top of the foot toward the shin in the sagittal planne (only at the angle joint)
Dorsiflexion
Moving the sole of the foot downward in the sagittal plane; “pointing the toes” (only at the angle)
Plantarflexion
Moving to the scapulae to a superior position in the frontal plane
Elevation
Moving to an inferior position in the frontal plane (only at the scapula)
Depression
ankle rolls out and your weight goes on the outside of your foot. Lifting the medial border of the foot in the frontal plane (only at the subtalar joint)
Inversion
ankle rolls in and your outside of your foot comes off the ground. Lifting the lateral border of the foot in the frontal plane (only at the subtalar joint)
Eversion
Internal (Inward) or external (outward) turning about the vertical axis of the bone in the transverse plane
Rotation
rotating palm down. Rotating the hand wrists medially from the elbow in the transverse plane
Pronation
rotating palm up. Rotating the hand and wrist laterally from the elbow in the transverse plane
Supination
Combination of eversion and abduction, rising the lateral edge of the foot in the transverse plane
Pronation
Combination of inversion and abduction, raising the medial edge of the foot in the transverse plane
Supination
From a 90° abducted shoulder or hip position, the humerus or femur, respectively, is flexed (adducted) in toward the midline of the body in the transverse plane
Horizontal flexion (adduction)
The return of the humerus or femur from horizontal flexion in the transverse plane (adduction)
Horizontal extension (abduction)
Motion describes a “cone”; combines flexion, extension, abduction, and adduction in sequence in the multiplanar plane
Circumduction
The movement unique to humans and primates in the multiplanar plane
Opposition