Anastomosis is least efficient at the region of lateral columns
খ
Cervical and lumbar segments have rich vascular supply
গ
T1 to T4 segments are least vulnerable to ischemia
ঘ
Anterior spinal artery thrombosis causes ischemia of anterior 2/3rd of the cord, sparing the posterior column, hence leads to dissociated sensory loss
ব্যাখ্যা
Special points Regarding blood supply of spinal cord 1. Anastomosis is least efficient at the region of lateral columns 2. Cervical and lumbar segments have rich vascular supply 3. T1 to T4 segments are most vulnerable to ischemia 4. Anterior spinal artery thrombosis causes ischemia of anterior 2/3rd of the cord, sparing the posterior column, hence leads to dissociated sensory loss.
৬.
Locked in syndrome found in which artery stroke
ক
PICA
খ
AICA
গ
MCA
ঘ
Basilar artery
৭.
Which one is reduced in anaemic hypoxia?
ক
ক) PO2
খ
খ) O2 carrying capacity
গ
গ) Velocity of blood
ঘ
ঘ) Utilization of O2 by tissues
ব্যাখ্যা
Explanation:
৮.
Few mitochondria present in
ক
RBC
খ
Lens
গ
Cornea
ঘ
Renal medulla
ব্যাখ্যা
Few mitochondria present in WBC, Renal Medulla, Retina
ABC of Biochemistry 6th - P: 162
৯.
Utilization of O2 by tissues is reduced in which form of hypoxia?
ক
ক) Hypoxic
খ
খ) Anaemic
গ
গ) Stagnant
ঘ
ঘ) Histotoxic
১০.
Relative hypoxia occurs in
ক
Shock
খ
Seizure
গ
Pulmonary embolism
ঘ
DM
ব্যাখ্যা
Relative hypoxia ( Type 1 B Lactic Acidosis) 1.Seizure 2.Severe Exercise
ABC of Biochemistry 6th - P: 371
১১.
O2 therapy is not useful in which form of hypoxia?