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Histo Final Exam > 151-200 > Flashcards

151-200 Flashcards

1
Q
  1. Which area in cartilage is relatively collagen-poor and proteoglycan-rich://
A

Territorial matrix

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2
Q
  1. How does articular cartilage differ from most other hyaline cartilage://
A

It lacks a perichondrium

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3
Q
  1. How does articular cartilage differ from most other hyaline cartilage://
A

It lacks a perichondrium

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4
Q
  1. How does articular cartilage differ from most other hyaline cartilage://
A

It lacks a perichondrium

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5
Q
  1. What do you call the space where a chondrocyte sits in://
A

lacuna

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6
Q
  1. Classification of cartilage tissue into three types depends on://
A

amounts of collagen and proteoglycan

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7
Q
  1. Which type of cartilage is found in the walls of the eustachian tube://
A

Elastic cartilage (also called yellow cartilage

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8
Q
  1. Which type of cartilage forms the skeleton of the fetus://
A

Hyaline cartilage

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9
Q
  1. Which type of cartilage is characterized by the presence of elastic fibers://
A

Elastic cartilage

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10
Q
  1. The process of intramembranous ossification begins with the formation of://
A

formation of mesenchymal condensations, which differentiate into proliferating preosteoblasts and finally become bone-depositing osteoblast

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11
Q
  1. Mesenchymal stem cells give rise to all cells of skeletal tissues except for one://
A
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12
Q
  1. The structural unit of the mature compact bone is://
A

osteon, or Haversian system

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13
Q
  1. Bone growth in length is provided by://
A

Epiphyseal plate of the long bone cartilage

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14
Q
  1. The process of endochondral ossification begins with://
A

Endochondral ossification begins with mesenchymal tissue transforming into a cartilage intermediate, which is later replaced by bone and forms the remainder of the axial skeleton and the long bones.

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15
Q
  1. What cell is involved in bone resorption://
A

Osteoclast cells

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16
Q
  1. What is the cylindrical structure in compact bone://
A

osteons or Haversian systems

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17
Q
  1. What is the space that an osteocyte rests in://
A

lacuna

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18
Q
  1. What cell is an immature bone cell://
A

osteoblast

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19
Q
  1. What is the covering of a bone://
A

periosteum

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20
Q
  1. In healthy bone canaliculi are likely to contain which one of the following://
A

osteocytes

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21
Q
  1. Which component of bone impedes the distribution of nutrients and oxygen to osteocytes://
A

Haversian canals.

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22
Q
  1. Which if the following most accurately describes compact bone://
A
23
Q
  1. In the diaphysis of a typical long bone which of the following structures is in closest proximity
    to the trabeculae of cancellous bone://
A

inner circumferential lamellae

24
Q
  1. During the hystological study of cortical shaft, basophilic cells with developed synthesis organelles can be seen on the bone surface under the layer of fibers. These cells take part in bone tissue regeneration. What shaft layer are they located in://
A

Periosteum

25
Q
  1. Which of the following is characteristic of the chromatophilic material called Nissl substance in neural tissue://
A

Site of mRNA translation for proteins of the axolemma

26
Q
  1. Which of the following events occurs immediately after an action potential reaches a synapse at an axon terminal://
A

Calcium ion influx at the presynaptic terminal

27
Q
  1. In the choroid plexus water from capillaries is transported directly into the cerebrospinal fluid by what structure(s)://
A

Ependyma

28
Q
  1. What term applies to collections of neuronal cell bodies (somata) in the central nervous system://
A

Nuclei

29
Q
  1. Which structure contains trabeculae around which cerebrospinal fluid (CSF) flows://
A

Dura Mater

30
Q
  1. Which of the following is a characteristic of the connective tissue layer that surrounds individual fascicles in large peripheral nerves://
A

Important as part of the blood-nerve barrier in the nerve

31
Q
  1. Myelinated nervous fibers are characterized by presence of all morphological features EXCEPT for one://
A
32
Q
  1. Neuroglial cells lining the ventricles of the brain and the central canal of the spinal cord are
    called: //
A

ependyma

33
Q
  1. Neurons whose axons form the motor endings on the surfaces of smooth muscle tissue are found in://
A

motor neuron (or motoneuron or efferent neuron

34
Q
  1. The organ belonging to the organs of central nervous system is://
A

brain and spinal cord

35
Q
  1. Neurotransmitter of motor end plate is://
A

Acetylcholine

36
Q
  1. Neurotransmitter of motor end plate is://
A

Acetylcholine

37
Q
  1. What are most neurons in the body://
A

multipolar

38
Q
  1. What is the cell body of a neuron called://
A

soma

39
Q
  1. Which cell is a macrophage found in the central nervous system://
A

Microglia

40
Q
  1. What is tissue which surrounds a nerve fascicle://
A

perineurium

41
Q
  1. What are interneurons://
A

they connect spinal motor and sensory neurons. As well as transferring signals between sensory and motor neurons,they connect spinal motor and sensory neurons. As well as transferring signals between sensory and motor neurons

42
Q
  1. What are the basophilic clusters of ribosomes and rough endoplasmic reticulum seen in neurons called://
A

Nissl, Nissl bodies or Nissl substance.

43
Q
  1. A sensitive neural ganglion consists of roundish neurocytes with one extension that divides into
    axon and dendrite at some distance from the perikaryon. What are these cells called://
A

Pseudounipolar

44
Q
  1. As a result of a mechanical injury an over 10 cm long portion of a peripheral nerve was damaged. This caused an impairment of the upper limb activity. The patient was offered nerve transplantation. What glial cells will participate in regeneration and provide the trophism of the injured limb://
A

Schwann cells

45
Q
  1. As a result of an injury, the integrity of the anterior spinal cord root was broken. Specify the neurons and their processes that had been damaged://
A

Axons of motor neurons

46
Q
  1. The basal lamina of a muscle fiber is part of which structure://
A

Endomysium

47
Q
  1. With the transmission electron microscope skeletal muscle fibers can be seen to contain structures called triads. What do the two lateral components of a triad represent://
A

Sites for calcium sequestration and release

48
Q
  1. Which characteristic is unique to cardiac muscle://
A

branching morphology and the presence of intercalated discs found between muscle fibers.

49
Q
  1. Smooth muscle tissue is characterized by all morphological features except for one://
A
50
Q
  1. Sarcomere is a segment of myofibril between://
A

between two neighbouring Z-lines

51
Q
  1. White skeletal muscle fibers are characterized by all morphological and functional features EXCEPT for one://
A
52
Q
  1. Skeletal muscle fiber is characterized by all morphological features EXCEPT for one://
A
53
Q
  1. Cardiac muscle fiber is characterized by all morphological features, EXCEPT for one://
A
54
Q
  1. Cardiac muscle fiber is characterized by all morphological features, EXCEPT for one://
A

Histo Final Exam (8 decks)

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