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Mid Final

QuestionAnswer
The junction between two neurons where communication occurs via neurotransmitters. Synapse
The ____ system is responsible for producing and secreting hormones that regulate various bodily functions Endocrine
A mechanism that counteracts a deviation from the set point, helping to maintain homeostasis. Negative Feedback
A rapid electrical signal that travels along the membrane of a neuron or muscle cell. Action Potential
Explain how the sodium-potassium pump contributes to maintaining the resting membrane potential in neurons. The sodium-potassium pump actively transports 3 sodium ions out of the cell and 2 potassium ions into the cell, using ATP. This creates an electrochemical gradient, maintaining a negative charge inside the neuron relative to the outside
A model explaining muscle contraction in which actin filaments slide over myosin filaments, shortening the sarcomere and generating tension. This process is powered by ATP and regulated by calcium ions. Sliding Filament Theory
Describe the role of the hypothalamus in the endocrine system and how it interacts with the pituitary gland. he hypothalamus regulates the endocrine system by producing releasing and inhibiting hormones that control the anterior pituitary gland. It also produces oxytocin and ADH, which are stored and released by the posterior pituitary.
During depolarization of a neuron, ____ channels open, allowing ions to flow into the cell. Sodium (Na⁺)
A physiological phenomenon where hemoglobin’s oxygen affinity decreases in response to increased carbon dioxide concentration, acidity (lower pH), and temperature, enhancing oxygen delivery to tissues. Bohr Effect
The ____ nerve is a major component of the parasympathetic nervous system and controls many vital functions, including heart rate and digestion. Vagus
Created by: Alysewil
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