2024 NSCA CSCS Study Review

2024 NSCA CSCS Study Review All New Qs & As for A++ Study Guide - Guaranteed Pass!

• which on is not axial skeleton

Skull (cranium) Vertebral column Shoulder girdle Ribs Sternum

Answer: Shoulder girdle

• Which is not appendicular skeleton

Vertebral column Shoulder girdle (pectoral, scapula clavicle) Bones of the arms, wrist and hands Pelvic girdle (coxal bones) Bones of the legs, ankles and feet

Answer: Vertebral column

• give examples of each types of joints (w/examples of each)

Fibrous - allow no movement Cartilaginous - limited movement Synovial- considerable movement

Answer: skull discs

elbow,knee

• what is the Conduction System of the Heart

Answer:

SA node AV node AV bundle left bundle branch right bundle branch purkinje fibers

• (First area of conduction) intrinsic pacemaker of the heart

left bundle branch purkinje fibers AV node SA node right bundle branch 1 / 4

AV bundle

Answer: SA Node

• 2nd area of conduction where the impulse is delayed slightly before passing into

ventricles

left bundle branch purkinje fibers AV node SA node right bundle branch AV bundle

Answer: AV Node

• 3rd area of conduction where impulses are conducted to the ventricles

left bundle branch purkinje fibers AV node SA node right bundle branch AV bundle

Answer: AV Bundle

• After the AV bundle what part of the heart's conduction system conducts

impulses to all parts of the ventricles?

left bundle branch purkinje fibers AV node SA node right bundle branch AV bundle

Answer:

Left and right bundles branches Purkinje Fibers

• What records electrical activity of the heart at the surface of the body.

P wave, QRS complex ECG T wave

Answer: ECG 2 / 4

• What part of an ECG shows depolarization?

P wave, QRS complex ECG T wave

Answer: P wave and QRS complex

• What part of the ECG shows repolarization?

P wave, QRS complex ECG T wave

Answer: T wave (ventricular muscle)

• The muscle fiber shortens as the actin filaments slide over myosin fila- ments

and Z-lines are pulled toward the center of the sarcomere

• Resting Phase
• Excitation-Contraction coupling phased 3 contraction phase
• recharge phase
• relaxation phase
• sliding filament theory

Answer: sliding filament theory

• The amount of force produced by a muscle at any instant in time is related to ?

• Resting Phase
• Excitation-Contraction coupling phased
• myosin cross bridges bound to actin filaments 4 contraction phase
• recharge phase
• relaxation phase

Answer: myosin cross bridges bound to actin filaments

• The assistance contracting muscles provide the circulatory system Works with

venous system to return blood to the heart via one way valves *Contracting muscle compresses the veins and the blood is returned to the heart due to one-way direction

• Resting Phase 3 / 4

• Excitation-Contraction coupling phased
• myosin cross bridges bound to actin filaments 4 contraction phase
• recharge phase
• Skeletal Muscle Pump

Answer: Skeletal Muscle Pump

• what is the main functions of blood

• the heart transports nutrients, removes waste and by-products and plays a key role

in regulating acid-base systems, fluid and temperature

• The heart is a muscular organ of two interconnected pumps (left and right) each

eith an atrium and a vetricle

• Atria -> ventricles -> pulmonary and peripheral

• Transport oxygen from lungs to tissue

removal of carbon dioxide

Answer: Transport oxygen from lungs to tissue removal of carbon dioxide

• what Is a iron-protein molecule carried by RBCs that transports oxygen

,and is an acid-base buffer and H+ ion regulator

Answer: hemoglobin

• Basic exchange of oxygen and carbon dioxide

air passes through the nose and into the nasal cavity (which warms, humidifies, and purifies the air) the air is distributes to the trachea, bronchi, bronchioles and alveoli

Answer: respiratory system

• The lungs expand and recoil by what mechanism of action?

Answer: Downward and upward movement of the diaphragm to lengthen and

shorten the chest cavity Elevation and depression of the ribs to increase and decrease the back to front diameter of the chest cavity

• muscles involved in inspiration are?

• External intercostals,
• sternocleidomastoids,
• anterior serrati,
• scalenes
• / 4