Biology Chapter on Tissues

<p>To insulate and speed up nerve impulse transmission (A)</p> Signup and view all the answers

<p>To receive nerve impulses from other neurons (B)</p> Signup and view all the answers

<p>Afferent (B)</p> Signup and view all the answers

<p>Organ systems (A)</p> Signup and view all the answers

<p>Produce energy (B)</p> Signup and view all the answers

<p>Nociceptors (B)</p> Signup and view all the answers

<p>Offers protection, but can be vulnerable during molting processes when it is shed. (C)</p> Signup and view all the answers

<p>Providing structural support for the hair-like extensions. (A)</p> Signup and view all the answers

<p>Requires a rigid outer covering for support. (A)</p> Signup and view all the answers

<p>It prevents nervous system overload by filtering out constant stimuli. (D)</p> Signup and view all the answers

<p>Calcium is stored in the bones and released as needed for muscle contraction. (D)</p> Signup and view all the answers

<p>Compact bone is dense and solid, while spongy bone is porous and contains marrow. (D)</p> Signup and view all the answers

<p>Invertebrate skeletons are made of chitin or calcium carbonate, while vertebrate skeletons are made of bone. (D)</p> Signup and view all the answers

<p>Regulating the body's internal environment (A)</p> Signup and view all the answers

<p>Negative feedback (A)</p> Signup and view all the answers

<p>Heat from metabolic processes (D)</p> Signup and view all the answers

<p>Homeotherms maintain body temperature at a constant level (C)</p> Signup and view all the answers

<p>Moves a variable away from the set point (C)</p> Signup and view all the answers

<p>It allows for anticipation of future needs (B)</p> Signup and view all the answers

<p>They rely on external sources for heat (B)</p> Signup and view all the answers

<p>To maintain balance between heat loss and gain (D)</p> Signup and view all the answers

<p>It acts as the body's thermostat to maintain core temperature. (B)</p> Signup and view all the answers

<p>By basking in sunlight and environment. (B)</p> Signup and view all the answers

<p>Increase in specific enzymes for better temperature tolerance. (B)</p> Signup and view all the answers

<p>Smooth muscles of arterioles relax, allowing increased blood flow. (C)</p> Signup and view all the answers

<p>A state of physical or mental inactivity. (C)</p> Signup and view all the answers

<p>Hypothalamus triggers compensatory responses to raise temperature. (D)</p> Signup and view all the answers

<p>In a thermoregulating response to temperature variations. (D)</p> Signup and view all the answers

<p>It lowers as part of the thermoregulation process. (B)</p> Signup and view all the answers

<p>Providing rigid support and protection (A)</p> Signup and view all the answers

<p>Skeletal muscle (C)</p> Signup and view all the answers

<p>Acetylcholine causes muscle fiber depolarization (A)</p> Signup and view all the answers

<p>They contain the sacromeres that enable contraction (A)</p> Signup and view all the answers

<p>By the point of muscle attachment relative to the joint (B)</p> Signup and view all the answers

<p>They inhibit myosin from binding with actin (A)</p> Signup and view all the answers

<p>Cardiac muscle (C)</p> Signup and view all the answers

<p>Influx of sodium ions (A)</p> Signup and view all the answers

<p>Direct cytoplasmic connection through gap junctions (A)</p> Signup and view all the answers

<p>It triggers the fusion of vesicles with the presynaptic membrane (C)</p> Signup and view all the answers

<p>They bind neurotransmitters and directly open ion channels (B)</p> Signup and view all the answers

<p>By neurotransmitters diffusing across the synaptic cleft (D)</p> Signup and view all the answers

<p>To send signals through neurotransmitter release (C)</p> Signup and view all the answers

<p>They vary in magnitude and are decremental. (C)</p> Signup and view all the answers

<p>They can stimulate or inhibit effector cells. (B)</p> Signup and view all the answers

<p>Formation of more complex neural networks (D)</p> Signup and view all the answers

Regulation of the body's internal environment near a stable level.

A process that returns a variable back to a set point to minimize changes.

A process that moves a variable away from a set point to amplify effects.

Adjustments made in anticipation of future needs or changes.

Organisms that generate heat from internal physiological sources.

Organisms that obtain heat from their external environment.

Organisms that maintain a constant body temperature regardless of environment.

Organisms that can vary their body temperature depending on the environment.

Framework of bones supporting the body and protecting organs.

Tissues responsible for body movement with contractile cells.

Includes skeletal, cardiac, and smooth muscles with different functions.

Striated muscle fibers formed by the fusion of myoblasts, enabling voluntary movement.

Site where motor neuron axon connects to a muscle fiber, facilitating contraction.

An electrical signal that triggers muscle contraction after neuron activation.

Calcium ions released to trigger muscle contractions and enable action.

Describes muscle contraction through the sliding of myofilaments (actin and myosin).

Maintaining body temperature for optimal physiological performance.

Brain region that regulates core body temperature.

Metabolic changes that enable better performance at varying temperatures.

Narrowing of blood vessels to reduce blood flow and retain heat.

Widening of blood vessels to increase blood flow and release heat.

A state of physical or mental inactivity or lethargy.

Includes reception, integration, transmission, and response.

Junctions where neurons communicate with other neurons or effectors.

Neuron that sends a signal to another neuron or effector.

Neuron that receives the signal from the presynaptic cell.

Signal transmissions occur through direct connections via gap junctions.

Involves neurotransmitter release across a synaptic cleft to communicate.

Chemical messengers that transmit signals across synapses.

A key neurotransmitter involved in muscle contraction and inhibition.

Reduction of response to a constant stimulus over time.

Sensory receptors that detect environmental molecules via hair-like extensions.

Receptors that detect damaging stimuli, leading to pain perception.

Receptors that detect electrical currents and fields.

A fluid-filled compartment that provides support and movement.

A rigid external covering providing support and protection.

Complex tissues that form the skeletal structure, includes compact and spongy types.

The process of maintaining calcium homeostasis in the body, especially in bones.

Basic unit of life; building blocks of all living organisms.

Groups of similar cells that work together to perform a specific function.

Structures made up of different tissues working together for a common purpose.

Groups of organs that work together to perform complex functions.

Layers of cells that cover surfaces and line cavities.

Tissue that supports, binds together, and protects other tissues.

Tissue responsible for movement in the body.

Tissue that receives and transmits impulses within the body.