Lecture 8 Flashcards

These flashcards cover key concepts from the KNES 323 lecture on energy delivery mechanisms in the body and the principles of electroencephalography (EEG). They're designed to reinforce understanding of metabolic processes and brainwave activity.

What is the primary form of energy that cells use for work in the body?

Cells use Adenosine Triphosphate (ATP) as the primary form of energy.

Which enzyme is responsible for splitting the terminal phosphate group from ATP?

ATPase is the enzyme that splits the terminal phosphate group from ATP.

What are the three mechanisms by which ATP is produced in skeletal muscle?

The three mechanisms are Creatine phosphate, Glycolysis, and Oxidative Respiration.

What process allows for ATP replenishment during the first few seconds of exercise?

The Creatine phosphate mechanism allows for ATP replenishment during the first few seconds of exercise.

What is Glycolysis and how does it relate to ATP production?

Glycolysis is the breakdown of glucose molecules and is much more complex than the creatine phosphate system but produces less ATP.

How does oxidative respiration contribute to ATP production?

Oxidative respiration breaks down fuel with the aid of oxygen and produces a large supply of ATP for prolonged activity.

What is the resting metabolic rate in METs?

The resting metabolic rate is approximately 3.5 mL/min/kg, defined as 1 MET.

How can VO2 be determined according to the Fick equation?

VO2 can be determined by the Fick equation: VO2 = Q x (AV-O2) where Q is cardiac output and AV-O2 is the arteriovenous oxygen difference.

What is Electroencephalography (EEG)?

EEG is a non-invasive recording of the electrical activity of the brain through the scalp.

Who was the first to record EEGs and in what decade?

Hans Berger recorded the first EEGs in the 1920s.

What are the different types of brain waves categorized in EEG?

The different types of brain waves categorized in EEG are Beta, Alpha, Theta, and Delta waves.

What are Beta waves associated with?

Beta waves are associated with conscious thought, focus, memory, and problem-solving.

What role do Alpha waves play in our mental state?

Alpha waves promote relaxation and calmness, and are prevalent during daydreaming.

What benefits are associated with Theta waves?

Theta waves improve creativity, intuition, and emotional connection.

What are Delta waves and their significance?

Delta waves are the slowest brain waves, essential for restorative sleep and rejuvenation.

How is sleep categorized based on EEG activity?

Sleep stages are categorized by the prominent EEG brainwave present in that stage, with Alpha and Beta during wakefulness and Delta during deep sleep.

What happens during REM sleep regarding EEG patterns?

During REM sleep, Beta activity returns to the EEG along with rapid eye movements and loss of muscle tone.

What is BCI technology and its importance in research?

Brain-computer interface (BCI) technology is important for providing access to technology for individuals with disabilities, especially for children.

Why is pediatric BCI research critical?

It is critical to adapt BCI technology specifically for children with neurological disabilities and to understand their unique needs.