Which of the following components of immune function is absent in ...

[stevenposner]

Which of the following components of immune function is absent in the dermis?
 
  A)
  Macrophages
  B)
  T cells
  C)
  Lymph nodes
  D)
  Mast cells

Question 2

Following bone density scanning and diagnostic imaging, a 4-year-old boy has been diagnosed with Legg-Calv-Perthes disease. Which of the following findings, signs, and symptoms would lead clinicians to this conclusion?
 
  Select all that apply.
  A)
  The boy has significant difficulty in walking.
  B)
  The boy's feet toe-in when standing upright.
  C)
  The child has limited abduction of the affected hip.
  D)
  His femoral head region is noted to be necrotic.
  E)
  There are numerous microfractures where his patellar tendon and tibia articulate.

[pikon]

Answer to Question 1

Ans:
C

Feedback:

While macrophages, T cells, fibroblasts, and mast cells are all present in the dermis, lymph nodes are not noted to be present in this layer.

Answer to Question 2

Ans:
A, C, D

Feedback:

Pain and difficulty in walking commonly accompany Legg-Calv-Perthes disease, in which necrosis exists in the epiphyseal growth center of the femoral head. Toe-in would not be an expected related finding, and microfractures where the patellar tendon and tibia articulate are associated with Osgood-Schlatter disease.

[stevenposner]

TYSM

[nguyenhoanhat]

Gracias!